MAXWELL LABORATORIES INC /DE/
424B4, 1997-11-12
ELECTRONIC COMPUTERS
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<PAGE>   1

                                                   This filing is made pursuant
                                                   to Rule 424(B)(4) under 
                                                   the Securities Act of 
                                                   1933 in connection with 
                                                   Registration No. 333-36853
 
   
PROSPECTUS
    
 
                                1,575,000 SHARES
 
                                  MAXWELL LOGO
 
                                  COMMON STOCK
                         ------------------------------
 
     Of the 1,575,000 shares of Common Stock offered hereby, 1,500,000 are being
issued and sold by Maxwell Technologies, Inc. ("Maxwell" or the "Company") and
75,000 are being sold by certain selling stockholders (the "Selling
Stockholders"). See "Principal and Selling Stockholders." The Company will not
receive any proceeds from the sale of shares by the Selling Stockholders.
 
   
     The Company's Common Stock is traded on the Nasdaq National Market under
the symbol "MXWL." On November 10, 1997, the last sale price of the Common
Stock, as reported on the Nasdaq National Market, was $34.125. See "Price Range
of Common Stock."
    
                         ------------------------------
 
                 THIS OFFERING INVOLVES A HIGH DEGREE OF RISK.
                 SEE "RISK FACTORS" BEGINNING ON PAGE 5 HEREOF.
                         ------------------------------
 
  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
 EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
   AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
                               CRIMINAL OFFENSE.
 
   
<TABLE>
<S>                        <C>                   <C>                   <C>                   <C>
===============================================================================================================
                                                    Underwriting                                Proceeds to
                                Price to           Discounts and          Proceeds to             Selling
                                 Public            Commissions(1)          Company(2)           Stockholders
- ---------------------------------------------------------------------------------------------------------------
Per Share..............          $34.00                $1.87                 $32.13                $32.13
Total(3)...............       $53,550,000            $2,945,250           $48,195,000            $2,409,750
===============================================================================================================
</TABLE>
    
 
(1) The Company and the Selling Stockholders have agreed to indemnify the
    Underwriters against certain liabilities, including liabilities under the
    Securities Act of 1933, as amended. See "Underwriting."
 
(2) Before deducting expenses estimated to be $600,000, payable by the Company.
 
   
(3) The Company has granted the Underwriters an option, exercisable within 30
    days of the date hereof, to purchase up to an aggregate of 236,250
    additional shares at the Price to Public less Underwriting Discounts and
    Commissions to cover over-allotments, if any. If all such additional shares
    are purchased, the total Price to Public, Underwriting Discounts and
    Commissions and Proceeds to Company will be $61,582,500, $3,387,037.50 and
    $55,785,712.50, respectively. See "Underwriting."
    
                         ------------------------------
 
   
     The Common Stock is offered by the several Underwriters named herein when,
as and if received and accepted by them, subject to their right to reject orders
in whole or in part and subject to certain other conditions. It is expected that
delivery of certificates for the shares will be made at the offices of Cowen &
Company, New York, New York on or about November 14, 1997.
    
 
COWEN & COMPANY                                                HAMBRECHT & QUIST
 
   
November 10, 1997
    
<PAGE>   2
 
                     A LEADER IN PULSED POWER TECHNOLOGIES
 
                                                                   [PHOTOS]
 
                                                              Maxwell's EMI
                                                              filters (left) are
                                                              designed into
                                                              implantable
                                                              devices such as
                                                              heart
                                                              defibrillators and
                                                              pacemakers
                                                              (below).
 
                                                              [PHOTOS]
 
Maxwell's PowerCache(TM) ultracapacitors have a wide variety of applications
including the protection of industrial manufacturing equipment and computers
against power fluctuations and interruptions that can damage work in process
(Ultracapacitor system pictured at top).
 
                                    [PHOTOS]
 
Maxwell's PureBright(R) microbial decontamination technology kills hazardous
microorganisms in water and pharmaceuticals and on food packaging and medical
supplies by exposing them to pulses of intense light (PureBright system for
production line use, top left; water treatment system, top right).
 
     CERTAIN PERSONS PARTICIPATING IN THIS OFFERING MAY ENGAGE IN TRANSACTIONS
THAT STABILIZE, MAINTAIN OR OTHERWISE AFFECT THE PRICE OF THE COMMON STOCK.
SPECIFICALLY, THE UNDERWRITERS MAY BID FOR AND PURCHASE SHARES OF COMMON STOCK
IN THE OPEN MARKET. SUCH STABILIZATION, IF COMMENCED, MAY BE DISCONTINUED AT ANY
TIME. SEE "UNDERWRITING."
 
     IN CONNECTION WITH THIS OFFERING, CERTAIN UNDERWRITERS AND CERTAIN SELLING
GROUP MEMBERS MAY ENGAGE IN PASSIVE MARKET MAKING TRANSACTIONS IN THE COMMON
STOCK ON THE NASDAQ NATIONAL MARKET IMMEDIATELY PRIOR TO THE COMMENCEMENT OF
SALES IN THE OFFERING IN ACCORDANCE WITH RULE 103 OF REGULATION M UNDER THE
SECURITIES EXCHANGE ACT OF 1934, AS AMENDED. SEE "UNDERWRITING."
<PAGE>   3
 
                               PROSPECTUS SUMMARY
 
     The following summary is qualified in its entirety by the more detailed
information and consolidated financial statements and the notes thereto
appearing elsewhere in this Prospectus. This Prospectus may contain
forward-looking statements which involve risks and uncertainties. The Company's
actual results may differ significantly from the results discussed in any
forward-looking statements. Factors that might cause such a difference include,
but are not limited to, those discussed in "Risk Factors" and elsewhere in this
Prospectus.
 
                                  THE COMPANY
 
     Maxwell Technologies, Inc. ("Maxwell" or the "Company") is a worldwide
leader in pulsed power technologies, the storage of electrical energy and
delivery of power in brief controlled bursts. The Company has leveraged its
technical expertise, gained from over 30 years of experience performing research
and development primarily for the United States Department of Defense, to
develop a portfolio of pulsed power based commercial products. These products
address a range of markets and applications and include ultracapacitors for
advanced electrical energy storage and power delivery, purification systems for
water treatment and the sterilization of medical and pharmaceutical products and
electromagnetic interference ("EMI") filter capacitors for implantable medical
devices. In addition to pulsed power based products, the Company offers
industrial computers and subsystems which are sold to OEMs in the computer
telephony, medical, manufacturing automation and other markets. Government
funded research and development projects continue to be an important element of
the Company's business, serving as an incubator for technological innovations
and a resource of scientific and engineering expertise.
 
     The Company's PowerCache ultracapacitors offer solutions to electrical
energy storage and power delivery problems in a wide range of commercial
applications including wireless communications devices, reliable power delivery
for industrial processing and computing equipment and automotive electrical
subsystems. The Company's ultracapacitors provide benefits such as extending
battery life and increasing signal strength in wireless communications devices
and protecting against power fluctuations and outages in industrial
applications. The Company also designs and manufactures high voltage capacitors
that are used in applications such as medical and industrial lasers, x-ray
machines and high-speed trains. Pulsed power technology has also enabled the
development of the Company's PureBright purification systems which deliver
pulses of light to kill microorganisms in applications ranging from water
treatment to sterilization of food packaging and medical and pharmaceutical
products. The Company's EMI filters prevent electromagnetic radiation emitted
from devices such as cellular phones and household appliances from disrupting
the functioning of implantable heart defibrillators and pacemakers and other
sensitive electronic equipment. The Company's pulsed power products are sold
primarily to OEMs in target markets and through direct sales channels.
 
     The Company intends to continue to execute its commercialization strategy,
develop products incorporating its core technologies and identify and penetrate
key markets for its products. The Company has established a number of strategic
partnerships with industry leaders for product development, marketing and sales.
Through these relationships the Company obtains specific market knowledge,
product and customer validation and access to funding for product development.
The Company has relationships with, among others, Tetra Pak International AB,
("Tetra Pak"), one of the world's leading food packaging equipment
manufacturers, PacifiCorp, a diversified utility and telecommunications company,
a leading automobile manufacturer and an international restaurant chain.
 
     As part of its shift to a commercially-oriented business, in 1996 the
Company completed a restructuring that organized like and synergistic businesses
into subsidiaries, creating focused centers of expertise for product
development, manufacturing, marketing and sales. In addition, the Company added
a new senior management team to drive the commercialization of Maxwell's
portfolio of core technologies and market penetration of the resulting products.
 
     The Company was incorporated in California in 1965 as Maxwell Laboratories,
Inc. and reincorporated in Delaware in 1986. The Company's name was changed to
Maxwell Technologies, Inc. in 1996. Unless otherwise indicated, all references
to "Maxwell" or the "Company" refer to Maxwell Technologies, Inc. and its
consolidated subsidiaries. The Company's executive offices are located at 9275
Sky Park Court, San Diego, California 92123. Its telephone number is (619)
279-5100.
 
     PowerCache(TM), PureBright(R), CoolPure(R), JAMIS(R) and ElectroBlast(TM)
are trademarks of the Company. All other trademarks or tradenames referred to in
this Prospectus are the property of their respective owners.
 
                                        3
<PAGE>   4
 
                                  THE OFFERING
 
<TABLE>
<S>                                              <C>
Common Stock offered:
  By the Company.............................    1,500,000 shares
  By the Selling Stockholders................    75,000 shares
Common Stock to be outstanding after this
  offering...................................    7,642,911 shares(1)
Use of proceeds..............................    For general corporate purposes, including working
                                                 capital and capital expenditures for facilities
                                                 and equipment and for possible acquisitions.
Nasdaq National Market symbol................    MXWL
</TABLE>
 
                   SUMMARY CONSOLIDATED FINANCIAL INFORMATION
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                                                          YEAR ENDED JULY 31,
                                                           -------------------------------------------------
                                                            1993      1994      1995       1996       1997
                                                           -------   -------   -------   --------   --------
<S>                                                        <C>       <C>       <C>       <C>        <C>
CONSOLIDATED STATEMENT OF OPERATIONS DATA:
  Sales..................................................  $86,902   $85,463   $75,004   $ 80,911   $101,411
  Gross profit...........................................   21,137    16,908    18,557     15,018     31,304
  Operating income (loss)................................    1,962    (2,972)     (117)   (11,330)     4,101
  Net income (loss)......................................    1,022    (1,687)      315    (15,176)     4,024
  Net income (loss) per share(2).........................  $  0.19   $ (0.32)  $  0.06   $  (2.76)  $   0.60
  Weighted average common and common equivalent shares
    outstanding(2).......................................    5,436     5,350     5,356      5,494      6,644
</TABLE>
 
   
<TABLE>
<CAPTION>
                                                                                        JULY 31, 1997
                                                                                    ---------------------
                                                                                                  AS
                                                                                    ACTUAL    ADJUSTED(3)
                                                                                    -------   -----------
<S>                                                                                 <C>       <C>
CONSOLIDATED BALANCE SHEET DATA:
  Working capital.................................................................  $10,908     $58,503
  Total assets....................................................................   47,120      94,715
  Long-term debt, excluding current portion.......................................      465         465
  Stockholders' equity............................................................   27,410      75,005
</TABLE>
    
 
- ---------------
 
   
(1) Based on shares outstanding as of July 31, 1997. Excludes (i) 207,884 shares
    of Common Stock reserved for future grant under the Company's 1995 Stock
    Option Plan (the "1995 Option Plan") and Director Stock Option Plan; (ii)
    options to purchase an aggregate of 1,054,680 shares of Common Stock
    outstanding under the Company's 1995 Option Plan, 1985 Stock Option Plan and
    Director Stock Option Plan, at a weighted average exercise price of $8.60
    per share and (iii) 339,335 shares of Common Stock reserved for future
    issuance under the Company's 1994 Employee Stock Purchase Plan and Director
    Stock Purchase Plan. See "Capitalization" and Note 4 of Notes to
    Consolidated Financial Statements.
    
 
(2) See Note 1 of Notes to Consolidated Financial Statements for a description
    of shares used in calculating net income (loss) per share.
 
   
(3) Adjusted to reflect the sale of 1,500,000 shares of Common Stock by the
    Company hereby at the public offering price of $34.00 per share and the
    application of the estimated net proceeds therefrom. See "Use of Proceeds."
    
 
     Except as otherwise indicated, all information contained in this Prospectus
(i) assumes no exercise of the Underwriters' overallotment option and (ii) has
been adjusted to reflect the 2-for-1 stock split effected in December 1996. The
term fiscal year shall refer to the 12 month period ended or ending July 31 of a
given year.
 
                                        4
<PAGE>   5
 
                                  RISK FACTORS
 
     Prospective investors should consider carefully, in addition to other
information contained in this Prospectus, the following factors before
purchasing the shares offered hereby.
 
DEPENDENCE ON PRODUCT DEVELOPMENT AND MARKET ACCEPTANCE
 
     Many of the Company's products, especially its ultracapacitor and
purification products, are in the development stage and are alternatives to
existing technologies. The Company's success is dependent in part on market
acceptance of its new products and there can be no assurance that any material
commercial market will develop for these products. The Company expects that its
ultracapacitor and purification products will compete with existing products
that are well established in the marketplace and that, in some cases, are less
expensive. The future success of the Company will depend in large part on the
Company's ability to accurately anticipate market demand for its products and
services as well as improve its existing technologies and products. The
Company's ability to demonstrate a technological or economic advantage, or both,
over competitive products in addition to the technical, financial and other
risks involved in introducing new products and technologies are critical to the
Company achieving its goals. There can be no assurance that the Company will be
successful in identifying markets for its technologies or in developing,
manufacturing and marketing new commercial products or enhancements to existing
products that address the needs of these markets, any of which could have a
material adverse effect on the Company's business, results of operations and
financial condition.
 
CONTINUING TRANSITION TO COMMERCIAL BUSINESS
 
     The Company is continuing its transition from its historical reliance on
funded research and development business for defense and other federal
government agencies to developing, manufacturing and marketing of products and
services for commercial markets. The Company's success in this regard will
depend upon a number of factors, including the Company's ability to gain
customer acceptance for its products and services, to expand its customer base
through sales and marketing efforts, to expand successfully its manufacturing
capacity, to develop extensions of its existing products and services into new
applications and to conceive and develop new products and services. Commencing
in fiscal 1996, the Company changed its senior management and reorganized its
operations along product and service lines. There can be no assurance that the
Company will be able to continue its transition to commercial businesses. The
Company's inability to achieve any of these objectives would have a material
adverse effect on the Company's business, results of operations and financial
condition.
 
FLUCTUATIONS IN OPERATING RESULTS; HISTORY OF LOSSES
 
     Although the Company had net income of $4.0 million in fiscal 1997, it has
incurred significant losses in two of the past five years. Net losses for the
Company's 1996 and 1994 fiscal years were approximately $15.2 million and $1.7
million, respectively. Of the fiscal 1996 loss, $14.4 million arose from charges
related to the reorganization of the Company's operations, a change in
accounting principle and other charges more fully described in "Management's
Discussion and Analysis of Financial Condition and Results of Operations" and in
the Consolidated Financial Statements and Notes thereto contained herein. The
Company may in the future experience significant fluctuations in revenues and
operating results from period to period as a result of a number of factors
including, without limitation, the volume and timing of orders and market
acceptance of the Company's products; the Company's ability to fill orders on a
timely basis; pricing policies of the Company or its competitors; variations in
the mix of product sales; the timing of product introductions by the Company or
its competitors; cancellation, suspension or other action taken by the United
States government or its agencies on its programs and contracts with the
Company; product obsolescence resulting from new product introductions or
changes in customer demand; and expenses associated with the acquisition of
businesses, products or technologies. The Company anticipates that, in order to
obtain market penetration, from time to time it will sell new products at prices
yielding margins below those it ultimately expects to achieve, and significant
aggressive pricing in a particular quarter or quarters could adversely affect
the results of operations for such periods. The impact of the foregoing factors
may cause the Company's operating results to be below
 
                                        5
<PAGE>   6
 
the expectations of public market analysts and investors. In such event, the
price of the Company's Common Stock could be materially adversely affected.
Quarterly results are not necessarily indicative of future performance for any
particular period, and there can be no assurance that the Company will attain or
sustain growth in sales and profitability on a quarterly or annual basis. See
"Management's Discussion and Analysis of Financial Condition and Results of
Operations."
 
EXTENSIVE RELIANCE ON STRATEGIC RELATIONSHIPS; RESTRICTIONS DUE TO EXCLUSIVITY
RIGHTS
 
     The Company has established and will continue to seek to establish
strategic relationships with corporate partners and research relationships with
United States government agencies to support its various development programs,
leverage its expertise and manufacturing resources, obtain an understanding of
and access to markets and validate products. The Company currently collaborates
with a variety of strategic partners, including Tetra Pak, a leading food
packaging machinery and products company, for purification systems, and
PacifiCorp, a leading utility holding company, for ultracapacitors.
 
   
     The loss of certain of its strategic relationships could have a material
adverse effect on the Company's sales growth. The Company's future success will
depend in part on its continued relationships with various of its strategic
partners, its ability to enter into other similar collaborative arrangements,
the interest of certain of the Company's strategic partners in the potential
products under development, the Company's success in meeting expectations of
strategic partners and, ultimately, their success in marketing or willingness to
purchase any such products. These programs may require the Company to share
control over its development, manufacturing and marketing programs, limit its
ability to license its technology to others, relinquish certain rights to its
technology, sell equity or rights to purchase equity in the Company or its
subsidiaries to the strategic partner or restrict its ability to engage in
certain areas of product development, production and marketing. Some of the
Company's existing collaborative arrangements permit, and future arrangements
also may permit, the Company's strategic partners to use or disclose the
technology developed in the program without any royalty obligation, to the
extent that the technology is jointly developed. Furthermore, the Company often
grants an exclusivity right to its strategic partner as an inducement to the
partner to participate in the development of a product or application. Any
exclusivity rights granted to strategic partners may inhibit the Company's
ability to find a wider market for certain of its commercial products and thus
may materially reduce revenues during the exclusivity period. There can be no
assurance that the Company will be able to enter into strategic arrangements on
commercially reasonable terms or that these arrangements, if established, will
result in successful programs to develop, manufacture or market pulsed power and
other products or that the Company's strategic partners will not seek to
manufacture jointly developed products themselves or obtain them from
alternative sources. See "Business -- Strategic Partnerships."
    
 
LIMITED VOLUME MANUFACTURING EXPERIENCE
 
     The Company has limited experience with volume manufacturing of commercial
products. To date, the Company has not manufactured in volume its
ultracapacitors or purification systems. The Company may face challenges in
scaling up production of its new products, especially those products that
contain newly developed technologies, including problems involving production
yields, quality control and assurance, component supply and shortages of
qualified management and other personnel. In addition, the Company will need to
expand its current facilities or obtain additional facilities in order to
manufacture a substantial quantity of its ultracapacitor, purification and EMI
filter products. There can be no assurance that the Company will be successful
in expanding its facilities or obtaining additional facilities, or that it will
be able to overcome the management, technological, engineering and other
challenges associated with the production of significant quantities of products
at acceptable cost on a timely basis. The Company may elect to outsource
manufacturing of certain of its products, if such opportunities are available.
Outsourcing of manufacturing involves risks with respect to quality assurance,
cost and the absence of close engineering support. In addition, part of the
Company's ultracapacitor development strategy is the implementation of a process
that could allow customization of products while retaining the benefits of
volume manufacturing and materials procurement. There can be no assurance that
such a process can be developed and implemented in time to meet the Company's
needs in this regard. Difficulties in manufacturing or in obtaining appropriate
facilities or locating
 
                                        6
<PAGE>   7
 
and qualifying outsourcing for manufacturing could have a material adverse
effect on the Company's business, financial condition and results of operations.
 
LIMITED SALES AND MARKETING EXPERIENCE
 
     The Company has limited experience marketing and selling ultracapacitors
and purification systems. To market these products, the Company will be required
to develop a marketing and sales force that will be able to effectively
demonstrate the advantages of these products over competing products and other
traditional solutions. Furthermore, the highly technical nature of the Company's
products limits the pool of potential sales personnel. The Company also enters
into agreements with distributors or sales representatives regarding the
marketing of its products. By entering into such agreements, the Company may be
substantially dependent upon the efforts of others in deriving commercial
benefits from its products. There can be no assurance that the Company will be
successful in marketing and selling its products, that it will be able to
establish adequate sales and distribution capabilities, that it will be able to
enter into marketing agreements with third parties on financially acceptable
terms or that any third parties with whom it enters into such arrangements will
be successful in marketing the Company's products. The Company's inability to
achieve any of these objectives would have a material adverse effect on the
Company's business, results of operations and financial condition.
 
DEPENDENCE ON OEM CUSTOMERS; LENGTHY SALES CYCLES
 
     A substantial portion of the Company's sales are derived from sales to a
relatively small number of OEM customers. The timing and amount of sales to
these customers ultimately depend on sales levels and shipping schedules for the
OEM products into which the Company's products are incorporated. The Company has
no control over the shipping date or volumes of products shipped by its OEM
customers, and there can be no assurance that any OEM will continue to ship
products that incorporate the Company's products at current levels or at all.
Failure of these OEMs to achieve significant sales of products incorporating the
Company's products and fluctuations in the timing and volume of such sales could
have a material adverse effect on the Company's business, financial condition
and results of operations.
 
     The decision process leading to the selection of the Company's products and
services is typically lengthy, with significant additional time required for
design, engineering and product approval before commercial shipments can begin.
Moreover, although customers sometimes substitute a new and better product into
an existing product, market opportunities with respect to any particular
customer typically occur at the time the customer is engaged in the design of a
new product or a substantial enhancement of an existing product, which typically
occur at infrequent intervals. Any failure of the Company to maintain continuing
awareness of its customers' product development schedules, or its inability to
provide the optimum solution at the time of such development can cause the
Company to miss a market opportunity that may not reappear for a substantial
period of time.
 
     Lucent Technologies ("Lucent"), an OEM customer of the Company, accounted
for approximately 12% of the Company's total sales in fiscal 1997 and is a
significant customer of the Company's Industrial Computers and Subsystems
business segment. A substantial portion of the Company's existing sales to
Lucent involves products that have not been designed into Lucent's next
generation products and the Company therefore expects that its business with
Lucent will decline substantially in the second half of fiscal 1998 and
subsequent periods. See "Management's Discussion and Analysis of Financial
Condition and Results of Operations" and "Business -- Customers."
 
DEPENDENCE ON PROPRIETARY TECHNOLOGY
 
     The Company's success is heavily dependent upon the establishment and
maintenance of proprietary technologies. Although the Company attempts to
protect its intellectual property rights through patents, copyrights, trade
secrets and other measures, there can be no assurance that the steps taken by
the Company to protect its proprietary technologies will be adequate to prevent
misappropriation by third parties or will be adequate under the laws of some
foreign countries, which may not protect the Company's proprietary rights to the
same extent as do the laws of the United States. In addition, others could
"reverse engineer" the
 
                                        7
<PAGE>   8
 
Company's products in order to determine their method of operation and introduce
competing products or develop competing technology independently. Any such
adverse circumstances could have a material adverse effect on the Company's
business, financial condition and results of operations.
 
     The Company uses employee and third-party confidentiality and
non-disclosure agreements to protect its trade secrets and unpatented know-how.
The Company requires each of its employees to enter into a proprietary rights
and non-disclosure agreement in which the employee agrees to maintain the
confidentiality of all proprietary information of the Company and, subject to
certain exceptions, to assign to the Company all rights in any proprietary
information or technology made or contributed by the employee during his or her
employment. In addition, the Company regularly enters into non-disclosure
agreements with third parties, such as consultants, potential joint venture
partners and customers. No assurance can be given that these methods will enable
the Company to maintain its trade secrets or unpatented know-how or that third
parties will not independently develop and/or patent substantially equivalent
proprietary information or copy, develop or otherwise obtain and use the
Company's proprietary technology without authorization.
 
     The Company has historically relied primarily on its technological and
engineering abilities and on its design and production capabilities, rather than
on patents, for the development and maintenance of its business. However, the
Company does file patent applications on concepts and processes developed by the
Company's personnel and, as its commercial businesses expand, the Company has
placed increased emphasis on patents to provide protection for certain of its
technologies and products. The Company believes that its future success will
depend in part on its ability to maintain its patents, add to them where
appropriate, and to develop new products and applications without infringing the
patent and other proprietary rights of third parties and without breaching or
otherwise losing rights in technology licenses obtained by the Company for other
products. There can be no assurance that any patent owned by the Company will
not be circumvented or challenged, that the rights granted thereunder will
provide competitive advantages to the Company or that any of the Company's
pending or future patent applications will be issued with claims of the scope
sought by the Company, if at all. If challenged, there can be no assurance that
the Company's patents (or patents under which it licenses technology) will be
held valid or enforceable. In addition, there can be no assurance that others
will not claim rights in the technology covered by the patents and other
proprietary technology owned or licensed by the Company or that others have not
developed or will not develop similar products or technology without violating
the Company's proprietary rights. The invalidity of a patent or determination
that the Company (or its licensor) does not hold sole rights to the technology
covered thereby could have a material adverse effect on the Company,
particularly if the Company is unable to design around others' proprietary
rights.
 
     Competing research and patent activity in many of the Company's
technologies is substantial and the markets are large enough that conflicting
patent and other proprietary rights claims may result in disputes or litigation.
Although the Company does not believe any of its products or proprietary rights
infringe the rights of third parties, there can be no assurance that
infringement claims will not be asserted against the Company in the future. Any
such claims, with or without merit, could be time-consuming, result in costly
litigation, cause product shipment delays or require the Company to enter into
royalty or licensing agreements. Such royalty or licensing agreements, if
required, may not be available on terms acceptable to the Company, or at all. If
infringement were established, the Company could be required to pay damages or
be enjoined from making, using or selling the infringing product. Likewise,
there can be no assurance that a third party's product, if infringing on the
Company's proprietary rights, may be prevented from doing so without litigation.
Any of the foregoing could have a material adverse effect upon the Company's
business, financial condition and results of operations.
 
     A number of the patents and patent applications owned or licensed by the
Company are subject to "march-in" rights and non-exclusive, royalty-free,
confirmatory licenses held by various governmental agencies or other entities.
March-in rights refer to the right of the United States government or a United
States government agency to cancel agreements and require a contractor to grant
licenses to third parties if the contractor fails to continue to develop the
technology related to the agreements. Confirmatory licenses permit the United
States government agencies or other governmental entities to select vendors
other than the Company to produce products for the United States government
which would otherwise infringe the
 
                                        8
<PAGE>   9
 
Company's patent rights which are subject to the royalty-free licenses. In
addition, the United States government has the right to require the Company to
grant licenses (including exclusive licenses) under such patents and patent
applications or other inventions to a third party if the United States
government determines that adequate steps have not been taken to commercialize
such inventions, such action is necessary to meet public health or safety needs,
such action is necessary to meet requirements for public use under federal
regulations or such action is necessary because the Company has not exercised
reasonable efforts to ensure products manufactured pursuant to such invention
are manufactured in the United States. See "Business -- Patents, Licenses and
Trademarks."
 
COMPETITION
 
     The markets in which the Company sells commercial products is highly
competitive, rapidly changing and significantly affected by new product
introductions and other market activities of industry participants. The
Company's primary competitors in ultracapacitors include Panasonic and SAFT, a
part of the Alcatel-Alsthom Group; in government-funded research and system
development include the Physics International unit of Primex Corporation and in
the passive backplane segment for industrial computers, include Texas
Microsystems, Diversified Technology, Advantech, Industrial Computer Source,
Teknor and Trenton. The Company's emerging products also compete with
established technologies in many markets, including batteries in ultracapacitor
products and a number of established methods of treating water and
decontaminating food packaging and medical products.
 
     Many of the Company's competitors have longer operating histories,
significantly greater financial, technical, marketing and other resources,
greater name recognition, and a larger installed base of customers than the
Company. In addition, certain competitors have well-established relationships
with customers and potential customers of the Company. Furthermore, as the
Company's new products gain acceptance, companies with significantly greater
resources than the Company could attempt to increase their presence in these
markets. In order to be successful in the future, the Company must continue to
respond promptly and effectively to the challenges of technological change and
its competitors' innovations by continually enhancing its own product offerings.
There can be no assurance, however, that the Company's products will continue to
compete favorably or that the Company will be successful in the face of
increasing competition from new products and enhancements introduced by existing
competitors or new companies entering its market. See "Business -- Competition."
 
RISKS ASSOCIATED WITH GOVERNMENT BUSINESS
 
     A substantial portion of the Company's sales (approximately 33% in fiscal
1997, 40% in fiscal 1996 and 43% in fiscal 1995) is derived from contracts with
the United States government, principally agencies of the United States
Department of Defense, and subcontracts with government suppliers. The
reductions in defense budgets over the past several years have adversely
affected the Company's business, particularly in the area of system
survivability products and services, such as weapons effects simulation and
testing. The Company has experienced significant reductions in this business as
the Department of Defense has responded to reduced global threats and shrinking
defense budgets. The Company has also experienced increased competition in
bidding for new defense programs from contractors seeking to replace their lost
government business. There can be no assurance that defense spending in general
or that contract awards to the Company specifically will not be reduced in the
future. A significant loss of United States government funding would have a
material adverse effect on the Company's business, results of operations and
financial condition.
 
     The Company's United States government business is also subject to other
various risks, including: unilateral termination for the convenience of the
government; reduction or modification in the event of changes in the
government's requirements or budgetary constraints; increased or unexpected
costs causing losses or reduced profits under fixed-price contracts or
unallowable costs under cost plus contracts; risks of potential disclosure of
the Company's confidential information to third parties; the failure or
inability of a contractor to perform its obligations under a contract in
circumstances where the Company is a partner contractor or subcontractor; the
failure of the government to exercise options provided for in the contracts and
the exercise of march-in rights or confirmatory licenses by the government.
There can be no assurance that the
 
                                        9
<PAGE>   10
 
Company's contracts with the Department of Defense and other government agencies
will not be terminated, reduced or modified or that the grant of such licenses
and rights will not result in a loss of potential revenues, any of which could
have a material adverse effect on the Company's business, results of operations
and financial condition.
 
     The Company participates in government funded programs which may extend for
several years, but are normally funded on an annual basis and shorter periods in
some cases. There can be no assurance that funding will continue for programs
covering the Company's development projects or that the Company can compete
successfully in obtaining contracts for such programs. A significant reduction
in, or discontinuation of, such funding or of the Company's participation in
such programs would have a material adverse effect on the Company's business,
results of operations and financial condition.
 
SUBSTANTIAL FUTURE CAPITAL NEEDS
 
     The Company believes that, in order to achieve its long-term strategic
objectives and maintain and enhance its competitive position, it will need
significant additional financial resources over the next several years. To meet
anticipated volume production requirements for several of the Company's product
lines, in particular ultracapacitors and purification systems, the Company will
need expanded manufacturing capabilities and facilities or viable production
alternatives. The Company anticipates that the estimated net proceeds from this
offering, together with cash flow from operations and possible debt financing or
leasing, should be adequate to support the Company's anticipated facilities
expansion and equipment purchases through fiscal 1998. The Company anticipates
that it will require additional capital in the future to fund its continuing
expansion into commercial markets, to construct and equip additional facilities,
or to acquire new or complementary businesses, product lines and technologies.
Currently the Company has a $10 million line of credit, but there can be no
assurance that any necessary additional financing will be available to the
Company on acceptable terms or at all. If adequate funds are not available, the
Company may be required to change, delay, reduce or eliminate its planned
product commercialization strategy or its anticipated facilities expansion plans
and expenditures, which could have a material adverse effect on the Company's
business, results of operations and financial condition.
 
DEPENDENCE ON KEY PERSONNEL
 
     The Company's future performance depends in significant part upon the
continued service of its key technical and senior management personnel. The
Company is dependent on its ability to identify, hire, train, retain and
motivate high quality personnel, especially key manufacturing executives and
highly skilled engineers and scientists involved in the ongoing development,
introduction and enhancement of the Company's products and technologies. The
industries in which the Company competes are characterized by a high level of
employee mobility and aggressive recruiting of skilled personnel. The Company's
employees may terminate their employment with the Company at any time.
Accordingly, there can be no assurance that any of the Company's current key
employees will continue to work for the Company. Loss of services of key
employees could have a material adverse effect on the Company's business,
financial condition and results of operations.
 
RELIANCE ON THIRD PARTY SUPPLIERS
 
     The Company's success is dependent in part on its ability to secure
qualified and adequate sources for supplies of materials, components and
sub-assemblies. The Company manufactures most of its products using a large
number of components or sub-assemblies, many of which are of commercially
available industrial parts and the remainder of which are custom-made to the
Company's specifications (by the Company and certain qualified outside
manufacturers). The Company endeavors to maintain more than one source of supply
for each of its major components or subassemblies, to the extent possible,
although certain suppliers are currently the sole source of one or more items
upon which the Company is dependent in the manufacture of its EMI filters and
industrial computing products. In the past, the Company has on occasion
experienced difficulty in obtaining timely delivery of power supplies for
industrial computers from outside suppliers which has adversely impacted the
Company's delivery time to its customers and in one circumstance the Company
believes such
 
                                       10
<PAGE>   11
 
delivery problems were a contributing factor to the loss of certain business
from a major customer. There can be no assurance that these and other similar
supply problems will not recur. In addition, the Company currently has only one
qualified supplier for a certain component of its ultracapacitors and is
contractually obligated to qualify at least one additional supplier. No
assurance can be given that such qualification will be completed in a timely
manner. Moreover, the current sole domestic source of a component of the
Company's EMI filter has indicated its plans to design, build and sell a
competing filter in the future. The Company believes this supplier will continue
to sell to the Company but that, if necessary, the Company could replace this
supplier. Although the Company seeks to reduce its dependence on sole and
limited source suppliers, the partial or complete loss of these sources could
have at least a temporary material adverse effect on the Company's results of
operations and damage customer relationships due to the complexity of the
products supplied and the significant amount of time required to qualify new
suppliers.
 
PRODUCT LIABILITY RISKS
 
     Certain of the Company's products may expose it to product liability risks.
The Company's EMI filters are components of implantable medical devices and, due
to the litigious environment surrounding the medical device industry, subject
the Company to an increased risk of product liability claims that may involve
significant defense costs. Other of the Company's products, such as
ultracapacitors and purification systems, may also be used in functions
involving significant product liability risks. There can be no assurance that
product liability claims will not be asserted against the Company in the future.
Although the Company maintains product liability insurance with coverage limits
it believes to be adequate, there can be no assurance that this coverage will in
fact be adequate to protect the Company against future product liability claims.
In addition, product liability insurance is expensive and there can be no
assurance that, in the future, product liability insurance will be available to
the Company in amounts or on terms satisfactory to the Company, if at all. A
successful product liability claim or series of claims brought against the
Company could have a material adverse effect on the Company's business,
financial condition and results of operations.
 
ENVIRONMENTAL REGULATIONS
 
     The Company is subject to a variety of governmental regulations relating to
the use, storage, discharge, handling, emission, generation, manufacture and
disposal of toxic or other hazardous substances. The failure to comply with
current or future regulations could result in substantial fines being imposed on
the Company, suspension of production, alteration of its manufacturing process
or cessation of operations. Such regulations could require the Company to
acquire expensive remediation or abatement equipment or to incur substantial
expenses to comply with environmental regulations. Any failure by the Company to
control the use, disposal or storage of, or adequately restrict the discharge
of, hazardous or toxic substances could subject the Company to significant
liabilities.
 
POTENTIAL DILUTIVE IMPACT OF EMPLOYEE STOCK OPTION PROGRAMS AT SUBSIDIARIES
 
     The Company has adopted stock option plans at each of its five principal
operating subsidiaries providing for the issuance of incentive and nonqualified
stock options to purchase common stock of these companies. Any of these
subsidiary stock options that have an exercise price per share less than the
fair market value per share of the common stock of a subsidiary ("in-the-money")
will have a negative impact on the Company's earnings per share. The Company
expects that its reported diluted earnings per share will be reduced in future
quarters due to the increased fair market value of certain of the Company's
subsidiaries. Such options, when and if exercised, will dilute the Company's
actual ownership interests in its subsidiaries, thus reducing the Company's
share of the net income, potential dividends or distributions and proceeds of
any sale or other disposition of such subsidiary. The equity interests upon
exercise of stock options in the subsidiaries would be accounted for as a
minority interest. Based on current programs, the dilutive impact attributable
to these option plans could be up to 13% at each of the Company's principal
operating subsidiaries (17% at one subsidiary). In addition, certain key
employees of the Company's Maxwell Business Systems, Inc. subsidiary, which owns
and markets the Company's job-cost accounting software and is in the Information
Products and Services business segment, currently own an aggregate of 20%, and
have the right to purchase up to an
 
                                       11
<PAGE>   12
 
additional 29%, of that subsidiary. Currently, no established trading market
exists for the common stock underlying any of the subsidiary options and such
options are not exchangeable for Common Stock of the Company. The Company has no
plan to offer an exchangeability feature for options to purchase Company Common
Stock or otherwise provide liquidity for these subsidiary options, but the
Company could consider such alternatives in the future.
 
ECONOMIC IMPACT OF POTENTIAL PUBLIC OFFERINGS OF SUBSIDIARY STOCK
 
   
     By conducting its operations through separate subsidiaries, the Company
promotes clearer market definition and product identity. This business unit
focus also allows the Company to more actively monitor opportunities for growth
or cost savings and to promote entrepreneurism with each subsidiary. While this
corporate structure also affords the Company a high level of flexibility to
implement various strategic alternatives, including future public offerings of
subsidiary stock, sales of subsidiaries or strategic acquisitions, certain of
these alternatives may have negative effects upon the Company's consolidated
sales, gross profit, net income and earnings per share. For example, any public
offering or other sale of a minority portion of a subsidiary's stock, including
in connection with any strategic relationship entered into by the Company, would
reduce that subsidiary's contribution to the Company's net income and earnings
per share. While any transaction would be preceded by a determination that such
transaction is in the best interests of the Company and its stockholders, such a
transaction could, nonetheless, have a material adverse effect on the Company's
results of operations.
    
 
GOVERNMENT REGULATION
 
     The testing, manufacture and sale of certain of the Company's products are
subject to regulation by numerous governmental authorities. Pursuant to the
Federal Food, Drug, and Cosmetic Act, and the regulations promulgated
thereunder, the United States Food and Drug Administration (the "FDA") regulates
the preclinical and clinical testing, manufacture, labeling, storage,
distribution and promotion of food and medical products and processes. The
Company has obtained clearance from the FDA of its CoolPure technology for
preservation of liquid foods. In addition, the Company has obtained clearance
from the FDA of PureBright for food use and is applying for similar approvals in
Canada and Europe, as well as supporting customers in obtaining clearance of
PureBright for medical applications. Implantable defibrillators and pacemakers
that incorporate the Company's EMI filter have been approved by the FDA. Delays
in receipt of or failure to receive anticipated approvals or clearances, the
loss of previously received approvals or clearances, limitations on intended use
imposed as a condition of such approvals or clearances, or failure to comply
with existing or future regulatory requirements would have a material adverse
effect on the Company's business, financial condition and results of operations.
 
     The testing, preparation of necessary marketing applications and processing
of those applications with the FDA is expensive and time consuming, can vary
based on the type of product and may take several years to complete. There is no
assurance that the FDA will act favorably or quickly in making such reviews, and
significant difficulties or costs may be encountered by the Company or others in
its efforts to obtain FDA approvals that could delay or preclude the Company
from marketing any products it may develop. The FDA may also require
postmarketing testing and surveillance to monitor the effects of approved
products or place conditions on any approval that could restrict the commercial
applications of such products. Product approvals may be withdrawn if compliance
with regulatory standards is not maintained or if problems occur following
initial marketing. Noncompliance with applicable requirements can result in,
among other things, fines, injunctions, civil penalties, recall or seizure of
products, total or partial suspension of production, failure of the United
States government to grant pre-market clearance or pre-market approval for
products, withdrawal of marketing clearances or approvals and criminal
prosecution.
 
RISKS ASSOCIATED WITH ACQUISITIONS
 
     As part of its business strategy, the Company regularly reviews possible
acquisitions of complementary companies, technologies or products, and
periodically engages in discussions regarding such possible acquisitions.
Acquisitions involve numerous risks, including evaluating new technologies;
difficulties in the
 
                                       12
<PAGE>   13
 
assimilation of the operations, products, personnel and cultures of the acquired
companies; the ability to manage effectively geographically remote units; the
diversion of management's attention from other day-to-day business concerns;
risks of entering markets in which the Company has limited or no direct
experience and the potential loss of key employees of the acquired companies. In
addition, acquisitions may result in dilutive issuances of equity securities;
the incurrence of debt; reduction of any then-existing cash balances;
amortization expenses related to goodwill and other intangible assets and other
charges to operating results that may materially adversely affect the Company's
results of operations. Moreover, there can be no assurance that any equity or
debt financings proposed in connection with any acquisition would be available
to the Company on acceptable terms or at all, when, and if, suitable strategic
acquisition opportunities arise. Although management expects to carefully
analyze any opportunity before committing the Company's resources, there can be
no assurance that any acquisition that is completed will result in long-term
benefits to the Company or its stockholders or that the Company's management
will be able to manage effectively the resulting business.
 
LONG-TERM FIXED-PRICE CONTRACTS
 
     A portion of Maxwell's software business consists of work under a small
number of large, multi-year fixed-price contracts with state and local
government agencies involving sophisticated integration and networking tasks and
a certain amount of application software development. In addition, certain of
the Company's other businesses, primarily those conducted in its government
funded research and systems development business, may also enter into long-term
fixed-price contracts for large hardware systems or components. Events and
developments such as unanticipated delays in program schedule, failure to
anticipate costs accurately over a two- or three-year period or performance
problems with important vendors can adversely affect the profitability of such
contracts. See "Business -- Government Business."
 
ANTI-TAKEOVER PROVISIONS
 
   
     The Company's Board of Directors is divided into three classes, each of
which is elected and serve overlapping three-year terms. In addition, the
Company has adopted a rights plan that, among other things, grants rights to
purchase Common Stock to all stockholders at a price significantly below market
value upon a business combination in the event a single person or group has
previously acquired more than 20% of the outstanding Common Stock without the
Board of Directors having elected to redeem such rights. Furthermore, the
Company's certificate of incorporation contains a "fair price provision"
intended to require an acquiror to obtain the consent of the Board of Directors
to any business combination involving the Company. The Company's certificate of
incorporation and bylaws also contain provisions barring stockholders action by
written consent and the calling by stockholders of a special meeting. Amendment
of such provisions requires a super majority vote by the stockholders, except
with the consent of the Board of Directors. The rights plan and provisions of
the Company's certificate of incorporation and bylaws could delay, deter or
prevent a merger, tender offer, or other business combination or change in
control involving the Company that some, or a majority of, stockholders might
consider to be in their best interests, including offers or attempted takeovers
that might otherwise result in such stockholders receiving a premium over the
market price of the Common Stock. See "Description of Capital Stock -- Common
Stock Rights" and "-- Additional Anti-Takeover Provisions."
    
 
LIMITED TRADING VOLUME; VOLATILITY OF STOCK PRICE
 
   
     The Company's Common Stock is traded on the Nasdaq National Market. Trading
volume in the twenty trading days ended November 10, 1997 averaged 53,150 shares
traded per day. Trading of relatively small blocks of stock can have a
significant impact on the price at which the stock is traded. The Company
believes factors such as quarterly fluctuations in financial results,
announcements of new technologies impacting the Company's products,
announcements by competitors or changes in securities analysts' recommendations
may cause the market price to fluctuate, perhaps substantially. These
fluctuations, as well as general economic conditions, such as recessions or high
interest rates, may adversely affect the market price of the Common Stock. See
"Price Range of Common Stock."
    
 
                                       13
<PAGE>   14
 
FORWARD-LOOKING STATEMENTS
 
     This Prospectus may contain forward-looking statements within the meaning
of Section 27A of the Securities Act of 1933, as amended (the "Securities Act")
and Section 21E of the Securities Exchange Act of 1934, as amended (the
"Exchange Act"). Such statements are subject to a number of risks and
uncertainties. Actual results in the future could differ materially from those
described in any forward-looking statements as a result of the Risk Factors set
forth above and the matters set forth elsewhere in this Prospectus generally.
The Company undertakes no obligation to publicly release the result of any
revisions to these forward-looking statements that may be made to reflect any
future events or circumstances.
 
                                       14
<PAGE>   15
 
                                USE OF PROCEEDS
 
   
     The net proceeds to the Company from the sale of 1,500,000 shares of Common
Stock offered by the Company hereby are estimated to be approximately $47.6
million, after deducting the underwriting discounts and commissions and
estimated offering expenses payable by the Company at the public offering price
of $34.00 per share. The Company intends to use the estimated net proceeds from
this offering for general corporate purposes, including working capital and
capital expenditures for facilities and equipment. In addition, proceeds may be
used for acquisitions of complementary businesses, products or technologies.
Although the Company regularly reviews various acquisition opportunities and
periodically engages in discussions regarding such possible acquisitions, the
Company currently has no commitments, agreements or understandings with respect
to any future acquisitions. Pending such uses, the Company will invest the
proceeds in short-term, investment-grade securities. The Company will not
receive any proceeds from the sale of Common Stock by the Selling Stockholders.
    
 
                                DIVIDEND POLICY
 
     The Company currently anticipates that any earnings will be retained for
the development and expansion of its business and, therefore, does not
anticipate paying dividends on its Common Stock in the foreseeable future. In
addition, under the Company's Line of Credit Agreement, neither the Company nor
any of its subsidiaries may, directly or indirectly, pay any cash dividends to
its stockholders.
 
                          PRICE RANGE OF COMMON STOCK
 
     The Company's Common Stock is traded on the Nasdaq National Market under
the symbol "MXWL." The following table sets forth, for the fiscal periods
indicated, the high and low closing sales prices for the Common Stock as
reported by the Nasdaq National Market. The prices for fiscal 1996 and the first
and second quarters of fiscal 1997 have been adjusted to reflect the 2-for-1
stock split which occurred in December 1996.
 
   
<TABLE>
<CAPTION>
                                                                 HIGH            LOW
                                                                -------       ---------
        <S>                                                     <C>           <C>
        FISCAL YEAR 1996
          Quarter ended October 31, 1995......................  $ 5 7/8       $ 3 5/8
          Quarter ended January 31, 1996......................    5 1/2         4 1/16
          Quarter ended April 30, 1996........................    5 1/8         3 3/8
          Quarter ended July 31, 1996.........................    7 5/8         4 11/16
 
        FISCAL YEAR 1997
          Quarter ended October 31, 1996......................  $15 1/2       $ 6 3/4
          Quarter ended January 31, 1997......................   25 1/8        17
          Quarter ended April 30, 1997........................   23            18
          Quarter ended July 31, 1997.........................   23 1/4        18 
 
        FISCAL YEAR 1998
          Quarter ended October 31, 1997......................  $38 1/2       $21 3/4
</TABLE>
    
 
   
     The last reported sale price of the Common Stock on the Nasdaq National
Market on November 10, 1997 was $34.125 per share. As of November 7, 1997, there
were 494 holders of record of the Company's Common Stock.
    
 
                                       15
<PAGE>   16
 
                                 CAPITALIZATION
 
   
     The following table sets forth the capitalization of the Company at July
31, 1997 and as adjusted to give effect to the sale by the Company of 1,500,000
shares of Common Stock offered hereby and the application of the estimated net
proceeds therefrom at the public offering price of $34.00 per share.
    
 
   
<TABLE>
<CAPTION>
                                                                             JULY 31, 1997
                                                                        ------------------------
                                                                         ACTUAL      AS ADJUSTED
                                                                        --------     -----------
                                                                             (IN THOUSANDS)
<S>                                                                     <C>          <C>
Long-term debt, excluding current portion............................   $    465      $     465
                                                                        --------       --------
Stockholders' equity:
  Common stock, $0.10 par value; 20,000,000 shares authorized,
     6,142,911 shares issued and outstanding, actual, and 7,642,911
     shares issued and outstanding, as adjusted(1)...................        614            764
  Additional paid-in capital.........................................     22,364         69,809
  Deferred compensation..............................................       (622)          (622)
  Retained earnings..................................................      5,054          5,054
                                                                        --------       --------
     Total stockholders' equity......................................     27,410         75,005
                                                                        --------       --------
          Total capitalization.......................................   $ 27,875      $  75,470
                                                                        ========       ========
</TABLE>
    
 
- ---------------
 
   
(1) Based on shares outstanding as of July 31, 1997. Excludes (i) 207,884 shares
    of Common Stock reserved for future grant under the 1995 Option Plan and
    Director Stock Option Plan; (ii) options to purchase an aggregate of
    1,054,680 shares of Common Stock outstanding under the Company's 1995 Option
    Plan, 1985 Stock Option Plan, and Director Stock Option Plan at a weighted
    average exercise price of $8.60 per share and (iii) 339,335 shares of Common
    Stock reserved for future issuances under the 1994 Employee Stock Purchase
    Plan and Director Stock Purchase Plan. See Note 4 of Notes to Consolidated
    Financial Statements.
    
 
                                       16
<PAGE>   17
 
                      SELECTED CONSOLIDATED FINANCIAL DATA
 
     The following selected consolidated statement of operations data for the
fiscal years ended July 31, 1995, 1996 and 1997, and consolidated balance sheet
data at July 31, 1996 and 1997 are derived from the Consolidated Financial
Statements of the Company and Notes thereto, which have been audited by Ernst &
Young LLP, independent auditors, and are included elsewhere in this Prospectus.
The following selected consolidated statement of operations data for the years
ended July 31, 1993 and 1994 and consolidated balance sheet data at July 31,
1993, 1994 and 1995 are derived from audited financial statements of the Company
not included in this Prospectus. The following selected data should be read in
conjunction with "Management's Discussion and Analysis of Financial Condition
and Results of Operations" and the Consolidated Financial Statements of the
Company and Notes thereto appearing elsewhere in this Prospectus.
 
<TABLE>
<CAPTION>
                                                            YEAR ENDED JULY 31,
                                         ---------------------------------------------------------
                                          1993        1994        1995         1996         1997
                                         -------     -------     -------     --------     --------
                                         (IN THOUSANDS, EXCEPT PER SHARE DATA)
<S>                                      <C>         <C>         <C>         <C>          <C>
CONSOLIDATED STATEMENT OF OPERATIONS
  DATA:
Sales..................................  $86,902     $85,463     $75,004     $ 80,911     $101,411
Cost of sales..........................   65,765      68,555      56,447       65,893       70,107
                                         -------     -------     -------     --------      -------
  Gross profit.........................   21,137      16,908      18,557       15,018       31,304
Operating expenses:
  Selling, general and administrative
     expenses..........................   13,525      14,068      13,636       15,564       21,900
  Research and development expenses....    5,650       4,794       5,038        5,081        5,303
  Restructure and asset impairment
     losses (1)........................       --          --          --        5,703           --
  Loss on closing of Brobeck
     division..........................       --       1,018          --           --           --
                                         -------     -------     -------     --------      -------
     Total operating expenses..........   19,175      19,880      18,674       26,348       27,203
                                         -------     -------     -------     --------      -------
Operating income (loss)................    1,962      (2,972)       (117)     (11,330)       4,101
Interest expense.......................      244         252         315          329          173
Other-net..............................      (35)       (589)       (848)        (398)        (150)
                                         -------     -------     -------     --------      -------
Income (loss) before income taxes,
  minority interest and loss from
  cumulative effect of change in
  accounting principle.................    1,753      (2,635)        416      (11,261)       4,078
Income tax expense (benefit)...........      683      (1,028)         15        1,296           --
Minority interest in net income of
  subsidiary...........................       48          80          86           50           54
Loss from cumulative effect of change
  in accounting principle (1)..........       --          --          --        2,569           --
                                         -------     -------     -------     --------      -------
Net income (loss)......................  $ 1,022     $(1,687)    $   315     $(15,176)    $  4,024
                                         =======     =======     =======     ========      =======
Earnings (loss) per share:
  Income (loss) per share before
     cumulative effect of change in
     accounting principle..............  $  0.19     $ (0.32)    $  0.06     $  (2.29)    $   0.60
  Net income (loss) per share..........  $  0.19     $ (0.32)    $  0.06     $  (2.76)    $   0.60
                                         =======     =======     =======     ========      =======
</TABLE>
 
<TABLE>
<CAPTION>
                                                                 JULY 31,
                                         ---------------------------------------------------------
                                          1993        1994        1995         1996         1997
                                         -------     -------     -------     --------     --------
                                         (IN THOUSANDS)
<S>                                      <C>         <C>         <C>         <C>          <C>
CONSOLIDATED BALANCE SHEET DATA:
Working capital........................  $20,142     $18,091     $17,855     $  7,288     $ 10,908
Total assets...........................   55,086      54,322      52,370       40,724       47,120
Long-term debt, excluding current
  portion..............................    1,515       2,797       1,928        1,018          465
Total stockholders' equity.............   36,645      34,960      35,364       20,745       27,410
</TABLE>
 
- ---------------
 
(1) See Note 8 of Notes to Consolidated Financial Statements.
 
                                       17
<PAGE>   18
 
                    MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                 FINANCIAL CONDITION AND RESULTS OF OPERATIONS
 
OVERVIEW
 
     From its roots as a pulsed power and advanced software applications company
performing research and development primarily for the United States Department
of Defense ("DOD"), Maxwell today has a portfolio of commercial products and
services derived from the technologies and expertise accumulated from its long
history of government funded pulsed power research and development. Although
Maxwell is aggressively pursuing technology commercialization, government funded
research and development continues as a significant part of the Company's
business, with sales under United States government contracts comprising 33% of
total sales in fiscal 1997. These efforts, and the technology advancements they
produce, are important factors in the development of applications with
commercial value.
 
     The Company sustained a net loss of $15.2 million in fiscal 1996, including
charges totaling $14.4 million related to the following: (i) the adoption of
FASB Statement No. 121; (ii) the fiscal 1996 reorganization of the Company
including senior management related severance and recruitment charges and
charges for facilities consolidations; (iii) the establishment of a valuation
allowance for net deferred income tax assets and (iv) the establishment of
certain contract, inventory, environmental and related reserves. See
"-- Quarterly Results of Operations" and Note 8 of Notes to Consolidated
Financial Statements.
 
     In implementing its business reorganization, the Company selected a new
Chief Executive Officer, refocused or divested certain product lines,
consolidated certain of its facilities and recast the Company into distinct
business and operating units with new senior management for these business units
(the "Reorganization"). As part of the Reorganization which became effective
August 1, 1996, the Company placed its government focused operations into a
single business unit. The Company's new business segments are as follows:
 
     - Power Conversion Products: Includes design, development and manufacture
       of electrical components and subsystems, including products that
       capitalize on pulsed power such as ultracapacitors, microbial
       purification systems, high voltage capacitors and other electrical
       components and EMI filter capacitors.
 
     - Industrial Computers and Subsystems: Includes design and manufacture of
       standard, custom and semi-custom industrial computer modules, platforms
       and fully integrated systems primarily for OEMs.
 
     - Technology Programs and Systems: Includes research and development
       programs in pulsed power, pulsed power systems design and construction,
       weapons effects simulation and computer-based analytic services,
       primarily for the DOD.
 
     - Information Products and Services: Includes design, development and
       integration of software products and services including job cost
       accounting and management information systems and other software products
       including applications for the Internet, as well as wide-area and
       local-area network and software integration services.
 
     The Company recognizes substantially all revenue from the sale of
manufactured products and short-term fixed-price contracts upon shipment of
products or completion of services. Revenues, including estimated profits, on
long-term fixed-price contracts are recognized as costs are incurred. Revenues,
including fees earned, on cost plus contracts are also recognized as costs are
incurred. Contract revenue is reflected in the Company's sales and includes
amounts received from the United States government and commercial customers for
the funded research and development efforts of the Company. Provisions are made
on a current basis to fully recognize any anticipated losses on contracts.
 
     A significant portion of the Company's product sales are to a relatively
small number of OEMs. OEM sales are characterized by relatively long product
life cycles and generally lower gross margins that can vary throughout product
life cycles. Gross margins are typically lower in the early stages of product
introduction before the Company has achieved a sufficient volume of sales to
increase absorption of its fixed costs. In addition, the Company may price its
products aggressively in order to form new OEM relationships, introduce new
products or achieve market penetration. The Company may receive product
development funding from its
 
                                       18
<PAGE>   19
 
OEM customers that could partially mitigate these impacts on gross margins.
Gross margins on OEM sales are also particularly sensitive to changes in product
and customer mix because of margin variances among individual products and the
relative importance of a single large sale on overall operating results.
 
RESULTS OF OPERATIONS
 
     The following table sets forth, for the periods indicated, selected
operating data for the Company, expressed as a percentage of sales.
 
<TABLE>
<CAPTION>
                                                                      YEAR ENDED JULY 31,
                                                                -------------------------------
                                                                 1995        1996        1997
                                                                -------     -------     -------
<S>                                                             <C>         <C>         <C>
Sales.........................................................    100.0%      100.0%      100.0%
Cost of sales.................................................     75.3        81.4        69.1
                                                                -------     -------     -------
  Gross profit................................................     24.7        18.6        30.9
 
Operating expenses:
  Selling, general and administrative expenses................     18.2        19.3        21.6
  Research and development expenses...........................      6.7         6.3         5.2
  Restructure and asset impairment losses.....................       --         7.0          --
                                                                -------     -------     -------
     Total operating expenses.................................     24.9        32.6        26.8
                                                                -------     -------     -------
Operating income (loss).......................................     (0.2)      (14.0)        4.1
Interest expense..............................................      0.4         0.4         0.2
Other-net.....................................................    (0.11)       (0.5)       (0.2)
                                                                -------     -------     -------
Income (loss) before income taxes, minority interest and loss
  from cumulative effect of change in accounting principle....      0.5       (13.9)        4.1
Income tax expense............................................       --         1.6          --
Minority interest in net income of subsidiary.................      0.1         0.1         0.1
Loss from cumulative effect of change in accounting
  principle...................................................       --         3.2          --
                                                                -------     -------     -------
  Net income (loss)...........................................      0.4%      (18.8)%       4.0%
                                                                =======     =======     =======
</TABLE>
 
     The following table sets forth, for the periods indicated, the Company's
business segment sales, gross profit and gross profit as a percentage of
business segment sales.
 
   
<TABLE>
<CAPTION>
                                                                      YEAR ENDED JULY 31,
                                                                -------------------------------
                                                                 1995        1996        1997
                                                                -------     -------     -------
                                                                       ($ IN THOUSANDS)
<S>                                                             <C>         <C>         <C>
Power Conversion Products:
  Sales.......................................................  $15,207     $16,448     $27,039
     Gross profit.............................................    3,930       3,887      10,142
     Gross profit as a percentage of sales....................     25.8%       23.6%       37.5%
Industrial Computers and Subsystems:
  Sales.......................................................  $23,319     $26,131     $34,259
     Gross profit.............................................    7,754       7,633      11,537
     Gross profit as a percentage of sales....................     33.3%       29.2%       33.7%
Technology Programs and Systems:
  Sales.......................................................  $31,064     $30,198     $31,087
     Gross profit.............................................    6,232       5,659       6,246
     Gross profit as a percentage of sales....................     20.1%       18.7%       20.1%
Information Products and Services:
  Sales.......................................................  $ 5,414     $ 8,134     $ 9,026
     Gross profit.............................................      641      (2,161)      3,379
     Gross profit as a percentage of sales....................     11.8%      (26.6)%      37.4%
</TABLE>
    
 
                                       19
<PAGE>   20
 
  Sales
 
     In fiscal 1997, the Company's total sales increased $20.5 million, or
25.3%, to $101.4 million from $80.9 million in fiscal 1996. In fiscal 1996,
sales increased $5.9 million, or 7.9%, to $80.9 million from $75.0 million in
fiscal 1995. International sales amounted to $12.6 million in fiscal 1997, $7.6
million in fiscal 1996 and $7.3 million in fiscal 1995. The increase in
international sales in fiscal 1997 was primarily attributable to increased
international revenues from customer funded development in the Power Conversion
Products business segment.
 
     Power Conversion Products. In fiscal 1997, Power Conversion Products sales
increased $10.6 million, or 64.4%, to $27.0 million from $16.4 million in fiscal
1996. This increase was primarily attributable to higher revenues from customer
funded ultracapacitor development and sales of prototype ultracapacitor products
to potential OEM customers for evaluation, increased sales of EMI filters for
implantable medical products and increased revenues from customer funded
development of pulsed power purification systems.
 
     In fiscal 1996, Power Conversion Products sales increased $1.2 million, or
8.2%, to $16.4 million from $15.2 million in fiscal 1995 as a result of higher
sales of certain pulsed power components, the introduction in the last half of
fiscal 1996 of the Company's EMI filters for implantable medical products and
increased revenues from customer funded development of pulsed power purification
systems.
 
     Industrial Computers and Subsystems. In fiscal 1997, Industrial Computers
and Subsystems sales increased $8.1 million, or 31.1%, to $34.3 million from
$26.1 million in fiscal 1996. Sales in this business segment are made
principally to OEM customers and are primarily derived from the shipment of
computers and subsystems that are "designed-in" to the OEM's products. The sales
increase in fiscal 1997 was derived from increased sales to OEM customers
primarily in the computer telephony market. The largest portion of the increase
consisted of sales to a single, long-standing OEM customer for use in products
that are nearing the conclusion of their product cycles. The Company does not
currently expect that it will receive orders from this customer for its next
generation products. However, the Company's products have recently been
integrated into several new OEM products to be introduced by other OEM
customers. The Company believes that orders for industrial computers and
subsystems from these new OEM customers should largely offset the loss of sales
described above. If sales of the OEMs' new products do not achieve the levels
projected by the OEM, the Company may be unable to offset the expected loss of
sales.
 
     In fiscal 1996, sales in this business segment increased $2.8 million, or
12.1%, to $26.1 million from $23.3 million in fiscal 1995. This increase was
also due to increased shipments to OEM customers as a result of design wins on
new OEM products.
 
     Technology Programs and Systems. In fiscal 1997, sales in the Technology
Programs and Systems segment increased $0.9 million, or 2.9%, to $31.1 million
from $30.2 million in fiscal 1996. This increase was primarily attributable to
revenues from a new contract for high-voltage power supplies for a Department of
Energy accelerator project and increased work levels on two large multi-year
contracts for the DOD. This increase was partially offset by the absence of
revenue from the Company's chemical analytical services business, which was sold
in the fourth quarter of fiscal 1996, the winding-down of the Company's
environmental consulting business and lower hardware systems sales.
 
     Revenues for fiscal 1997 included amounts related to the closure of three
DOD pulsed power simulation facilities operated by the Company for many years in
San Diego. These closures will be concluded in the first half of fiscal 1998 and
the underlying contracts with the DOD will be completed. However, the Company
has subsequently received additional long-term contracts from the DOD, including
one for research on next-generation pulsed power switch technology for x-ray
simulators. These and other contracts with the DOD are subject to periodic
Government funding provisions. The level of future DOD expenditures in the
Company's research and development area and the related impact on funding for
the Company's contracts are not predictable and, therefore, previously reported
results are not necessarily indicative of those to be expected in the future.
 
                                       20
<PAGE>   21
 
     In fiscal 1996, sales in this business segment decreased $0.9 million, or
2.8%, to $30.2 million from $31.1 million in fiscal 1995 primarily as a result
of reduced sales of chemical analytical services, partially offset by increased
revenues from the two multi-year DOD contracts.
 
     Information Products and Services. In fiscal 1997, sales of Information
Products and Services increased $0.9 million, or 11.0%, to $9.0 million from
$8.1 million in fiscal 1996. This increase primarily reflects greater sales of
the Company's job-cost accounting software, partially offset by a decline in
revenues from two large multi-year software development contracts for criminal
justice information systems (the "CJIS Contracts"). Work on the CJIS Contracts
is scheduled to be substantially completed in the first half of fiscal 1998.
 
     In fiscal 1996, sales in this business segment increased $2.7 million, or
50.2%, to $8.1 million from $5.4 million in fiscal 1995 principally due to
revenues attributable to the commencement of work in fiscal 1996 on one of the
CJIS Contracts.
 
  Gross Profit
 
     In fiscal 1997, the Company's gross profit was $31.3 million, or 30.9% of
sales, compared to $15.0 million, or 18.6% of sales, in fiscal 1996. The
increase in gross profit as a percentage of sales was primarily due to the
increased overall sales in fiscal 1997, resulting in improved overhead
absorption, and an improved mix of products and services, particularly in the
Power Conversion Products business segment. In fiscal 1996, the Company's gross
profit was $15.0 million, or 18.6% of sales, compared to $18.6 million, or 24.7%
of sales, in fiscal 1995. The decreases in fiscal 1996 were primarily
attributable to the portion of the $14.4 million charge taken in fiscal 1996
that was recorded in cost of sales.
 
     Power Conversion Products. In fiscal 1997, Power Conversion Products gross
profit increased $6.3 million to $10.1 million from $3.9 million in fiscal 1996.
As a percentage of sales, gross profit increased to 37.5% in fiscal 1997 from
23.6% in fiscal 1996. This increase in gross profit as a percentage of sales
reflected improved overhead absorption and an improved mix of products and
services, including higher sales of EMI filters for implantable medical devices
and greater revenues from funded research and development.
 
     As the Company introduces ultracapacitor products it may offer aggressive
pricing to gain market penetration. This would have an adverse impact on gross
profit margins until the Company reaches full production volumes.
 
     In fiscal 1996 and 1995, gross profits in this business segment were
consistent at $3.9 million. As a percentage of sales, gross profit decreased to
23.6% in fiscal 1996 from 25.8% in fiscal 1995 primarily due to the portion of
the $14.4 million charge taken in fiscal 1996 that was recorded in cost of
sales.
 
     Industrial Computers and Subsystems. In fiscal 1997, Industrial Computers
and Subsystems gross profit increased $3.9 million, or 51.1%, to $11.5 million
from $7.6 million in fiscal 1996. As a percentage of sales, gross profit
increased to 33.7% in fiscal 1997 from 29.2% in fiscal 1996 due to increased
sales of certain higher margin customized OEM products and improved overhead
absorption from the higher overall sales. In addition, cost of sales in fiscal
1996 reflected higher inventory write-offs than in fiscal 1997.
 
     In fiscal 1996, gross profit decreased $0.1 million, or 1.6%, to $7.6
million from $7.8 million in fiscal 1995. As a percentage of sales, gross profit
decreased to 29.2% in fiscal 1996 from 33.3% in fiscal 1995 as a result of
higher inventory write-offs in fiscal 1996 and the impact in fiscal 1996 of
shipments on several large, competitively bid procurements that had lower profit
margins.
 
     Technology Programs and Systems. Technology Programs and Systems gross
profit was $6.2 million, $5.7 million and $6.2 million in fiscal years 1997,
1996 and 1995, respectively. As a percentage of sales, gross profit remained
relatively constant at 20.1% in fiscal 1995, 18.7% in fiscal 1996 and 20.1% in
fiscal 1997. The stability of gross profit as a percentage of sales resulted
from the predominance of government cost plus contracts in this business
segment. See "Business -- Government Business."
 
     Information Products and Services. In fiscal 1997, Information Products and
Services gross profit increased $5.5 million to $3.4 million from $(2.2) million
in fiscal 1996. As a percentage of sales, gross profit increased to 37.4% in
fiscal 1997 from (26.6)% in fiscal 1996. In fiscal 1996, the Company recorded
reserves
 
                                       21
<PAGE>   22
 
against the CJIS Contracts because total contract completion costs were
projected to exceed the contract value on these fixed price contracts. In
addition, fiscal 1996 reflects a write-off of certain capitalized software
development costs. To a lesser extent, the comparative improvement in fiscal
1997 is attributable to increased sales of the Company's higher margin job-cost
accounting software products.
 
     In fiscal 1996, gross profit in this business segment decreased $2.8
million to $(2.2) million from $0.6 million in fiscal 1995. As a percentage of
sales, gross profit decreased to (26.6)% in fiscal 1996 from 11.8% in fiscal
1995, reflecting the impact in fiscal 1996 of the reserves recorded on the CJIS
Contracts and the write-off of certain capitalized software development costs.
 
  Selling, General and Administrative Expenses
 
     In fiscal 1997, the Company's selling, general and administrative expenses
increased $6.3 million, or 40.7%, to $21.9 million from $15.6 million in fiscal
1996. As a percentage of total sales, selling, general and administrative
expenses increased to 21.6% in fiscal 1997 from 19.3% in fiscal 1996. These
increases were attributable primarily to (i) increased sales and marketing
costs, principally from the addition of new sales and marketing personnel added
as part of the Company's plan to grow its commercial businesses, and commissions
earned on higher commercial sales in fiscal 1997 primarily in the Company's
Power Conversion Products and Industrial Computers and Subsystems business
segments; (ii) accruals under new incentive and profit sharing plans implemented
in fiscal 1997 and (iii) additions to senior management, both at the executive
and business unit levels, to support the Company's new strategic direction.
 
     In fiscal 1996, selling, general and administrative expenses increased $1.9
million, or 14.1%, to $15.6 million from $13.6 million in fiscal 1995. As a
percentage of sales, selling, general and administrative expenses increased to
19.3% in fiscal 1996 from 18.2% in fiscal 1995. These increases were
attributable primarily to a charge in fiscal 1996 of approximately $1.5 million
for environmental and other matters and for amounts in connection with the
Reorganization, as well as higher sales and marketing costs in support of the
Company's commercial business initiatives.
 
  Research and Development Expenses
 
     The Company's research and development expenses reflect only internally
funded research and development programs. Costs associated with United States
government and other customer funded research and development contracts are
included in cost of sales. Research and development expenses were $5.3 million,
$5.1 million and $5.0 million for fiscal 1997, 1996 and 1995, respectively. The
level of research and development expenses reflects the Company's ability to
obtain customer funding to support a significant portion of its research and
product development activities. Because of the increased overall sales level,
however, as a percentage of sales, research and development expenses decreased
to 5.2% in fiscal 1997 from 6.3% in fiscal 1996 and 6.7% in fiscal 1995.
 
  Interest Expense
 
     In fiscal 1997, interest expense decreased to $173,000 from $329,000 in
fiscal 1996 as a result of lower average borrowings. In fiscal 1996, interest
expense remained relatively constant in comparison to fiscal 1995.
 
  Other-net
 
     In fiscal 1997, other-net was $150,000, compared to $398,000 in fiscal 1996
and $848,000 in fiscal 1995. The decrease in other-net primarily reflects
completion in April 1996 of the amortization into income of amounts contributed
by minority stockholders upon the organization of the Company's PurePulse
Technologies, Inc. subsidiary over such stockholders' proportionate share of
PurePulse's equity. In fiscal 1996 and fiscal 1995 other-net included $379,000
and $508,000 of such income, respectively, while none was included in fiscal
1997. The balance of other-net in all three fiscal years was principally
interest income.
 
                                       22
<PAGE>   23
 
  Income Tax Expense
 
     The Company has net operating loss carryforwards which offset the Company's
provision for income taxes in fiscal 1997. Fiscal 1996 income tax expense is
primarily due to the establishment of a valuation allowance of $1.1 million for
the net deferred income tax assets of the Company due to the losses incurred in
fiscal 1996. Income tax expense was incurred at an effective rate of 3.6% in
fiscal 1995, which primarily reflects the non-taxable status of the $508,000 of
amortization described above.
 
QUARTERLY RESULTS OF OPERATIONS
 
     The following tables present unaudited quarterly financial information for
the eight quarters ended July 31, 1997, and such data expressed as a percentage
of the Company's net sales for the periods indicated. The information has been
presented by the Company on a basis consistent with the Consolidated Financial
Statements included elsewhere in this Prospectus and includes all necessary
adjustments, consisting only of normal recurring adjustments, that management
considers necessary for a fair presentation of the unaudited quarterly results
when read in conjunction with the Consolidated Financial Statements and Notes
thereto. These operating results are not necessarily indicative of results that
may be expected for any subsequent periods.
 
<TABLE>
<CAPTION>
                                                                          THREE MONTHS ENDED
                                         ------------------------------------------------------------------------------------
                                          OCT.       JAN.       APR.       JULY       OCT.       JAN.       APR.       JULY
                                           31,        31,        30,        31,        31,        31,        30,        31,
                                          1995       1996       1996       1996       1996       1997       1997       1997
                                         -------    -------    -------    -------    -------    -------    -------    -------
                                                                           ($ IN THOUSANDS)
<S>                                      <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>
CONSOLIDATED STATEMENT OF OPERATIONS
  DATA:
Sales..................................  $19,172    $19,340    $20,331    $22,068    $24,017    $24,577    $25,922    $26,895
Cost of sales..........................   14,864     17,997     16,114     16,918     16,958     16,939     17,599     18,611
                                         --------   --------   --------   --------   --------   --------   --------   --------
  Gross profit.........................    4,308      1,343      4,217      5,150      7,059      7,638      8,323      8,284
                                         --------   --------   --------   --------   --------   --------   --------   --------
Operating expenses:
  Selling, general and
    administrative.....................    3,133      4,569      3,955      3,907      5,179      5,489      5,875      5,357
  Research and development.............      983      1,335      1,223      1,540      1,058      1,212      1,407      1,626
  Restructure and asset impairment
    losses.............................       --      2,568      3,817       (682)        --         --         --         --
                                         --------   --------   --------   --------   --------   --------   --------   --------
      Total operating expenses.........    4,116      8,472      8,995      4,765      6,237      6,701      7,282      6,983
                                         --------   --------   --------   --------   --------   --------   --------   --------
Operating income (loss)................      192     (7,129)    (4,778)       385        822        937      1,041      1,301
Interest expense.......................       71         73         92         93         44         39         45         45
Other-net..............................     (161)      (202)       (96)        61        (56)       (32)       (35)       (27)
                                         --------   --------   --------   --------   --------   --------   --------   --------
Income (loss) before income taxes,
  minority interest, and loss from
  cumulative effect of change in
  accounting principle.................      282     (7,000)    (4,774)       231        834        930      1,031      1,283
Income tax expense.....................       28      1,172         37         59         --         --         --         --
Minority interest in net income of
  subsidiary...........................       12          7         12         19         18         18        (28)        46
Loss from cumulative effect of change
  in accounting principle..............    2,569         --         --         --         --         --         --         --
                                         --------   --------   --------   --------   --------   --------   --------   --------
Net income (loss)......................  $(2,327)   $(8,179)   $(4,823)   $   153    $   816    $   912    $ 1,059    $ 1,237
                                         ========   ========   ========   ========   ========   ========   ========   ========
AS A PERCENTAGE OF SALES:
Sales..................................    100.0%     100.0%     100.0%     100.0%     100.0%     100.0%     100.0%     100.0%
Cost of sales..........................     77.5       93.1       79.3       76.7       70.6       68.9       67.9       69.2
                                         --------   --------   --------   --------   --------   --------   --------   --------
  Gross profit.........................     22.5        6.9       20.7       23.3       29.4       31.1       32.1       30.8
                                         --------   --------   --------   --------   --------   --------   --------   --------
Operating expenses:
  Selling, general and
    administrative.....................     16.4       23.6       19.4       17.7       21.6       22.4       22.7       20.0
  Research and development.............      5.1        6.9        6.0        7.0        4.4        4.9        5.4        6.0
  Restructure and asset impairment
    losses.............................       --       13.3       18.8       (3.1)        --         --         --         --
                                         --------   --------   --------   --------   --------   --------   --------   --------
      Total operating expenses.........     21.5       43.8       44.2       21.6       26.0       27.3       28.1       26.0
                                         --------   --------   --------   --------   --------   --------   --------   --------
Operating income (loss)................      1.0      (36.9)     (23.5)       1.7        3.4        3.8        4.0        4.8
Interest expense.......................      0.3        0.3        0.5        0.4        0.2        0.2        0.2        0.2
Other-net..............................     (0.8)      (1.0)      (0.5)       0.3       (0.3)      (0.2)      (0.2)      (0.2)
                                         --------   --------   --------   --------   --------   --------   --------   --------
Income (loss) before income taxes,
  minority interest, and loss from
  cumulative effect of change in
  accounting principle.................      1.5      (36.2)     (23.5)       1.0        3.5        3.8        4.0        4.8
Income tax expense.....................      0.1        6.1        0.2        0.3         --         --         --         --
Minority interest in net income of
  subsidiary...........................      0.1         --         --         --        0.1        0.1       (0.1)       0.2
Loss from cumulative effect of change
  in accounting principle..............     13.4         --         --         --         --         --         --         --
                                         --------   --------   --------   --------   --------   --------   --------   --------
Net income (loss)......................    (12.1)%    (42.3)%    (23.7)%      0.7%       3.4%       3.7%       4.1%       4.6%
                                         ========   ========   ========   ========   ========   ========   ========   ========
</TABLE>
 
                                       23
<PAGE>   24
 
     The three months ended October 31, 1995 reflected a $2.6 million loss
attributable to the adoption of FASB Statement No. 121. The three months ended
January 31, 1996 included charges of $6.9 million consisting of the
following: (i) approximately $2.0 million recorded in cost of sales for contract
and inventory charges; (ii) $1.2 million in selling, general and administrative
expenses attributable primarily to environmental and other matters and charges
related to the Reorganization; (iii) $2.6 million of charges reflected in
restructure and asset impairment losses relating to the Reorganization and to
the adoption of FASB Statement No. 121 and (iv) $1.1 million recorded in income
tax expense for the establishment of a valuation allowance for net deferred
income tax assets. The reduction in gross profit as a percent of sales in the
quarter is a result of the portion of these charges included in cost of sales.
 
     The three months ended April 30, 1996 included $3.8 million of charges
related principally to the Reorganization and included in restructure and asset
impairment losses and $0.8 million of further contract and inventory charges
included in cost of sales.
 
     The $0.7 million credit in restructure and asset impairment losses in the
three months ended July 31, 1996 reflects the reversal of the remainder of the
reserve previously recorded in anticipation of losses on the termination of the
Company's chemical analytical services business upon completion of the sale of
that business during this period.
 
     The increase in selling, general and administrative expenses that commenced
with the three months ended October 31, 1996 is attributable to the increased
sales and marketing costs, benefit plan accruals and senior management additions
reflecting the Reorganization and the implementation of strategies for pursuing
commercial business.
 
     The Company may in the future experience significant fluctuations in
revenues and operating results from period to period as a result of a number of
factors including, without limitation: the volume and timing of orders and
market acceptance of the Company's products; the Company's ability to fill
orders on a timely basis; pricing policies of the Company or its competitors;
variations in the mix of product sales; the timing of product introductions by
the Company or its competitors; cancellation, suspension or other action taken
by the United States government on its contracts with the Company; product
obsolescence resulting from new product introductions or changes in customer
demand and expenses associated with the acquisition of technologies or
businesses. The Company believes that quarter-to-quarter comparisons of its
results of operations are not necessarily meaningful and should not be relied
upon as indicators of future performance. Quarterly results in the future may
fluctuate due to the factors discussed above or other factors. Further, the
Company's historical operating results are not necessarily indicative of future
performance for any particular period. There can be no assurance that the
Company's past revenue growth or its past profitability will continue on a
quarterly, annual or other basis. Due to all of the foregoing factors, it is
highly likely that in certain future quarters the Company's operating results
will be below the expectations of public market analysts and investors.
 
LIQUIDITY AND CAPITAL RESOURCES
 
     The Company has historically relied on a combination of internally
generated funds and bank borrowings to finance its working capital requirements
and capital expenditures. In addition, in fiscal 1997, the Company received
approximately $2.5 million from the exercise of stock options and purchases
under its stock purchase plans.
 
     Cash flow from operations in fiscal 1997 was $2.9 million, with net income
plus depreciation and amortization of approximately $6.6 million partially
offset by increases in accounts receivable and inventory in support of the
higher fiscal 1997 sales.
 
     The Company's capital expenditures in fiscal 1997 increased to $4.7 million
from $2.0 million in fiscal 1996, primarily for the acquisition of production
and computer equipment and other assets needed to support growth of the
Company's business units. The Company has currently budgeted capital
expenditures of $7.0 million for fiscal 1998 to support growth, including
expansion of manufacturing facilities for the EMI filter and ultracapacitor
operations, and expansion in one of the Company's owned buildings. In addition,
the
 
                                       24
<PAGE>   25
 
Company will be addressing the need for high-volume manufacturing of
ultracapacitors, and commitments may be made during fiscal 1998 toward meeting
such needs. Alternatively, the Company may consider leasing facilities or
manufacturing equipment or both or may satisfy volume manufacturing requirements
through outsourcing or under licensing arrangements with third parties. If the
Company decides to internally finance construction of such facilities, a
significant amount of capital would be required.
 
     The Company re-negotiated its bank line of credit during fiscal 1997,
converting the line of credit to a two year unsecured arrangement and increasing
the amount available to $10.0 million. The interest rate on the line of credit
is tied to LIBOR or the bank's prime rate. As of July 31, 1997, there were no
outstanding borrowings under the line of credit.
 
     The Company believes that the net proceeds from this offering, together
with cash generated from operations and funds available under its bank line of
credit, will be sufficient to finance its operations and capital expenditures
through fiscal 1998. In addition to addressing the need for high volume
manufacturing of its ultracapacitor products, the Company may also from time to
time consider acquisitions of complementary businesses, products or
technologies, which may require additional funding. Sources of additional
funding for these purposes could include one or more of the following: cash flow
from operations; investments by strategic partners and additional debt or equity
financing. There can be no assurance that the Company will be able to obtain
additional sources of financing on favorable terms, if at all, at such time or
times as the Company may require such capital.
 
   
SUBSIDIARY OPTION PROGRAMS AND ISSUANCES OF STOCK TO STRATEGIC PARTNERS
    
 
   
     The Company has implemented employee stock option plans at each of its five
principal operating subsidiaries providing for the issuance of incentive and
nonqualified stock options to purchase common stock of these companies by each
subsidiary. The option plans are intended to encourage an entrepreneurial
atmosphere in each business segment, providing focused rewards promoting growth.
Options that are "in-the-money" at the subsidiary level will have a negative
impact on the Company's earnings per share. The Company expects that its
reported diluted earnings per share will be reduced in future quarters due to
in-the-money subsidiary options. Except to the extent exercised, however, such
subsidiary options will not affect the Company's consolidated net income as
reported in its consolidated statement of operations. Such options, when and if
exercised, will dilute the Company's actual ownership interests in its
subsidiaries, thus reducing the Company's share of the net income, potential
dividends or distributions and proceeds of any sale or other disposition of such
subsidiary. The equity interests upon exercise of stock options in the
subsidiaries would be accounted for as a minority interest. Based on current
programs, the dilutive impact attributable to these option plans could be up to
13% at each principal operating subsidiary (17% at one subsidiary). In addition,
certain key employees of the Company's Maxwell Business Systems, Inc.
subsidiary, which owns and markets the Company's job-cost accounting software
and is in the Information Products and Services business segment, currently own
an aggregate of 20%, and have the right to purchase up to an additional 29%, of
that subsidiary. Pursuant to strategic partnering relationships, Tetra Pak owns
approximately 5% of the Company's PurePulse Technologies, Inc. subsidiary, and
PacifiCorp owns preferred stock convertible into 7.5% of the Company's Maxwell
Energy Products, Inc. subsidiary. See "Risk Factors -- Potential Dilutive Impact
of Employee Stock Option Programs at Subsidiaries" and "Management -- Executive
Compensation."
    
 
INFLATION AND CHANGES IN PRICES
 
     Generally, the Company has been able to increase prices to offset its
inflation-related increased costs in its commercial businesses. A substantial
portion of the Company's business with agencies of the United States government
consists of cost-reimbursement contracts which permit recovery of inflation
costs. Fixed-price contracts with government and other customers typically
include estimated costs for inflation in the contract price.
 
                                       25
<PAGE>   26
 
ACCOUNTING PRINCIPLES
 
     In February 1997, the Financial Accounting Standards Board issued Statement
No. 128, Earnings Per Share. Under Statement No. 128, the Company will be
required to present basic net income per share, which excludes the effects of
dilutive common stock equivalents, and diluted net income per share. Basic net
income per share is expected to be higher than the currently presented primary
net income per share in periods of positive earnings due to the exclusion of
dilutive stock options in its computation. Diluted net income per share is not
expected to be materially different from the earnings per share amounts which
would be computed under the current method.
 
     The Company is required to adopt Statement No. 128 in its fiscal quarter
ending January 31, 1998, and at that time all historical net income per share
data presented will be restated to conform to the provisions of Statement No.
128.
 
                                       26
<PAGE>   27
 
                                    BUSINESS
 
GENERAL
 
     Maxwell Technologies, Inc. ("Maxwell" or the "Company") is a worldwide
leader in pulsed power technologies, the storage of electrical energy and
delivery of power in brief controlled bursts. The Company has leveraged its
technical expertise, gained from over 30 years of experience performing research
and development primarily for the United States Department of Defense, to
develop a portfolio of pulsed power based commercial products. These products
address a range of markets and applications and include ultracapacitors for
advanced electrical energy storage and power delivery, purification systems for
water treatment and the sterilization of medical and pharmaceutical products and
electromagnetic interference ("EMI") filter capacitors for implantable medical
devices. In addition to pulsed power based products, the Company offers
industrial computers and subsystems which are sold to OEMs in the computer
telephony, medical, manufacturing automation and other markets. Government
funded research and development projects continue to be an important element of
the Company's business, serving as an incubator for technological innovations
and a resource of scientific and engineering expertise.
 
     The Company's PowerCache ultracapacitors offer solutions to electrical
energy storage and power delivery problems in a wide range of commercial
applications including wireless communications devices, reliable power delivery
for industrial processing and computing equipment and automotive electrical
subsystems. The Company's ultracapacitors provide benefits such as extending
battery life and increasing signal strength in wireless communications devices
and protecting against power fluctuations and outages in industrial
applications. The Company also designs and manufactures high voltage capacitors
that are used in applications such as medical and industrial lasers, x-ray
machines and high-speed trains. Pulsed power technology has also enabled the
development of the Company's PureBright purification systems which deliver
pulses of light to kill microorganisms in applications ranging from water
treatment to sterilization of food packaging and medical and pharmaceutical
products. The Company's EMI filters prevent electromagnetic radiation emitted
from devices such as cellular phones and household appliances from disrupting
the functioning of implantable heart defibrillators and pacemakers and other
sensitive electronic equipment. The Company's pulsed power products are sold
primarily to OEMs in target markets and through direct sales channels.
 
     As part of its shift to a commercially-oriented business, in 1996 the
Company completed a restructuring that organized like and synergistic businesses
into subsidiaries, creating focused centers of expertise for product
development, manufacturing, marketing and sales. In addition, the Company added
a new senior management team to drive the commercialization of Maxwell's
portfolio of core technologies and market penetration of the resulting products.
 
INDUSTRY BACKGROUND
 
  Pulsed Power
 
     Pulsed power is the storage of electrical energy and the delivery of brief
controlled bursts of electricity at high power for periods typically ranging
from a microsecond up to 60 seconds. Research and development of pulsed power
technologies have been funded for over 30 years, primarily by the United States
government. The expertise gained through this funded research forms the basis
for the development of commercial products based on pulsed power technologies.
In recent years, pulsed power applications have been developed which offer
solutions to power storage and delivery problems in a wide range of commercial
applications, including wireless communications, automotive electrical
subsystems, water treatment and sterilization of medical and pharmaceutical
products and food packaging. Benefits of pulsed power include extending battery
life, improving system performance, reducing cost and system size and enabling
new system functions.
 
     Ultracapacitors. The proliferation and increasing complexity of electronic
products and the electrical power requirements associated with them are spurring
demand for innovative solutions for power delivery in a wide variety of
applications including portable electronics, power quality and automotive
electrical subsystems. Portable electronic products such as wireless
communications devices, which typically transmit data in a series of short
bursts and personal data assistants, which typically have subsystems that start
up and shut down
 
                                       27
<PAGE>   28
 
rapidly, require reliable internal power sources that are capable of supplying
repeated bursts of power and that adhere to exacting size and weight
constraints. In addition, computer-intensive businesses, manufacturers and other
commercial users of high-speed industrial processing equipment, such as
semiconductor manufacturers and high speed printers, demand power quality (i.e.,
the uninterrupted supply of power at a constant voltage). In the absence of
power quality protection, small fluctuations in power often shut down automated
production systems, which may damage products on the assembly line and cause
significant delays in business operations. Technology Insights estimates that
the power quality market in the year 2000, including adjustable speed drives,
uninterruptable power systems and engine start and actuator applications, will
amount to over $11 billion. Moreover, automobile manufacturers are utilizing an
increasing number of electrical subsystems that require sophisticated power
management in conventional combustion engine vehicles. In response to
legislation adopted in several U.S. states requiring zero-emission vehicles,
automobile manufacturers are also seeking enabling technologies for commercially
viable electric vehicles and hybrid combustion/electric vehicles.
 
     Batteries and capacitors have long served as electrical energy storage and
power delivery devices. However, limitations in battery and capacitor
performance are an obstacle to both the continued enhancement of many electronic
devices and the development of new applications. Batteries degrade over time, do
not effectively provide bursts of power and do not function well in extreme
temperatures or allow for practical, accurate measurement of remaining energy
reserves. The capacitor, utilized in situations in which high power output in
short bursts is required, differs from batteries in that it can charge and
discharge stored energy rapidly and does not degrade with each charge and
discharge. However, traditional capacitors are not suitable for energy storage
and power delivery applications which require higher energy storage capability
and longer discharge times.
 
     Advances in pulsed power technology have enabled the development of
ultracapacitors for providing bursts of power when an accelerated injection of
energy is required for an application. Ultracapacitors combine certain
characteristics of batteries and traditional capacitors. Like batteries,
ultracapacitors discharge energy at low voltages. Like traditional capacitors,
ultracapacitors store and discharge electrical energy rapidly, do not degrade
with repeated use and can be quickly recharged. In contrast to traditional
capacitors, ultracapacitors have significantly greater energy storage capability
and longer discharge times, making them suitable for many applications that fall
outside the performance parameters of traditional capacitors.
 
     Purification Systems. Pulsed power technologies can also be utilized for
microbial decontamination by delivering intense bursts of light or pulses of
electricity to kill microorganisms. Conventional techniques for controlling
microorganisms commonly present in water and other liquids, on foods, on food
packaging and on medical products include filtering, heat pasteurization and
sterilization, ionizing radiation and application of chemicals. Conventional
purification techniques often fail to effectively fulfill end-user needs for a
variety of reasons, including failure to eliminate certain microorganisms in
water supplies (chlorination, ultraviolet light and similar processes), change
in taste and texture of foods (heat and chemicals), time and cost (many
conventional techniques, including autoclave heat sterilization of medical
instruments), environmental concerns (ionizing radiation and chemicals) and
effective monitoring of performance by the user (most conventional techniques).
 
     The markets for purification technologies where pulsed power purification
systems may be applied are large and growing. According to the Water Quality
Association, the worldwide market for water treatment technologies is expected
to be approximately $13.9 billion in 1997. Pulsed light purification products
are targeted to a specialized portion of this market.
 
  EMI Filtering
 
     The electromagnetic fields and signals generated by electronic devices can
interfere with and disrupt the functioning of other electronic devices. Certain
categories of electronic products, including implantable medical devices such as
pacemakers and defibrillators and aerospace guidance and communications systems,
may fail to perform as required in the presence of EMI. In recent years, the FDA
has publicly expressed concern about the potentially deleterious effect on the
safe operation of implantable medical devices caused by
 
                                       28
<PAGE>   29
 
an increasingly large variety of EMI sources, including household appliances and
cellular telephones and other wireless communication devices that operate in an
increasingly large part of the electromagnetic spectrum. To combat the effects
of EMI, some manufacturers of electronic products incorporate EMI filters into
the circuitry of their products. An alternative approach blocks EMI from
entering an electronic device at the opening used by, for example, power leads
or sensors (the "feedthrough"). These feedthrough filters block EMI from
entering an electronic device without interfering with its functionality. In
addition to feedthrough filtering capabilities, electronic device manufacturers
seek EMI filters that can block a broad range of electromagnetic frequencies and
conform to small form factors.
 
  Industrial Computers and Subsystems
 
     Industrial computers form the backbone and control system for many types of
electronic equipment. Unlike general purpose computers such as PCs, industrial
computers provide a computing platform for a larger system made by an OEM. These
products can be designed to accept specialized additional hardware and software
from a customer or third party vendor and satisfy additional requirements such
as high reliability, non-standard input/output capability and specific form
factors. Industrial computers are incorporated into a broad range of products,
including computer telephony products (voice messaging systems, interactive
voice response servers and telephone switch management systems),
telecommunications products (cellular base stations, two-way paging systems,
advanced intelligent networks, enhanced service systems and video conferencing
servers), Internet/worldwide web servers, electronics and semiconductor testing,
manufacturing and assembly equipment, a range of medical devices and other
commercial applications.
 
     The rapid proliferation of complex electronics applications has created
attractive markets for highly focused industrial computer manufacturers who
possess the engineering know-how and experience to provide design-intensive
solutions. OEMs frequently conclude that their needs for such products can be
better met by specialized outside manufacturers rather than by developing these
capabilities internally. Electronic Trend Publications estimates that the size
of the total industrial computer market will exceed $2.5 billion worldwide in
1997.
 
     OEMs are also continually seeking means to integrate more functionality and
new technologies into smaller enclosures with higher levels of fault tolerance
at lower cost. In industrial computers, a number of architectures are currently
in use. One of the most prevalent architectures, passive backplane, facilitates
compatibility with components designed for PCs, design flexibility, fault
tolerance, customization of input/output ports and cost effectiveness.
CompactPCI, an emerging architecture which certain OEMs are beginning to design
into their next generation products, will incorporate the cost effectiveness and
design flexibility of passive backplane architecture, while enhancing ruggedness
and fault tolerance in a smaller form factor. According to Electronic Trend
Publications, annual sales of industrial computers and subsystems incorporating
CompactPCI architecture are projected to exceed $400 million in 2000 and grow to
$1.0 billion in 2001.
 
  Government Funded Research and Systems Development
 
     The United States government relies on companies with significant
scientific and technical expertise to provide technology-driven research and
development programs supporting a variety of military and space programs. Many
of the United States' strategic defense capabilities are examined and tested
through weapons effects simulation and computer modeling. Additionally, research
and development is required on techniques to harden electronics against weapons
effects and the space environment, devise sensors designed to detect hostile
environments, particularly in space applications, and devise alternate means of
generating nuclear fuel without the potential environmental impact of
traditional methods. Many of these efforts involve the development, design,
construction and operation of major pulsed power systems and the application of
sophisticated computer modeling and analysis of complex physical phenomena.
 
                                       29
<PAGE>   30
 
MAXWELL'S SOLUTIONS
 
     With over 30 years of experience in pulsed power research and development
programs, Maxwell has developed substantial scientific and engineering expertise
in electrical energy storage and power delivery systems. The Company has
leveraged its expertise, particularly in pulsed power, to design and manufacture
a range of products which apply pulsed power technology to commercial
applications and address a number of commercial markets.
 
     Ultracapacitors. The Company is a leader in ultracapacitor development. In
a 1996 study conducted by the Idaho National Energy Laboratory, the Company's
PowerCache ultracapacitor demonstrated a substantial performance advantage in
both the storage of electrical energy and the release of power over all of the
other organizations that participated in the study, including competing
commercial developers of this technology as well as national laboratories. The
flexibility of the Company's PowerCache ultracapacitor technology enables it to
produce ultracapacitors in a wide range of sizes and energy storage capabilities
that address a broad range of applications. The Company has initially targeted
its ultracapacitor products to the wireless communications, power quality and
automotive markets. In the wireless communications market, the Company's
ultracapacitors are being used as battery supplements in two-way pagers,
wireless modems and emergency locator beacons to extend battery life and to
increase signal strength. In the power quality market, banks of PowerCache
ultracapacitors offer solutions for temporary voltage fluctuations and power
interruptions, diesel and electric motor startup and battery load leveling and
enhancements. In the automotive market, the Company is providing ultracapacitors
for evaluation in electrical subsystems in combustion engine vehicles for
applications ranging from catalytic converter preheating, airbag actuators and
seat belt tighteners to power steering and power braking subsystems. The Company
is also collaborating with leading automobile companies to develop PowerCache
ultracapacitors for use as battery supplements or replacements in electric
vehicles and hybrid electric vehicles.
 
     Purification Systems. The Company's pulsed power based purification
products, PureBright and CoolPure, address the limitations of conventional
techniques for microbial decontamination. The PureBright system utilizes pulsed
power to deliver intense light pulses in rapid sequence to kill a wide range of
microorganisms in water and pharmaceutical products, on food and packaging
surfaces and on medical products. The PureBright system is effective against
many microorganisms, including cryptosporidium, which conventional systems fail
to kill, and meets treatment standards as stringent as those for pharmaceutical
products sterilization. PureBright does not pollute the environment and is
readily monitored for performance by end-users. The Company's CoolPure system,
now in prototype development, uses high energy electric pulses, rather than
light pulses, to decontaminate opaque or cloudy liquids and liquid foods.
 
     Other Pulsed Power Products. Leveraging its experience researching,
designing and operating major pulsed power systems for the United States
government, the Company designs and manufactures traditional high voltage
capacitors, power supplies and other electrical components for applications
requiring reliable sources of high power output. The Company's products are
incorporated in portable heart defibrillators, medical and industrial lasers and
power conditioning equipment for x-ray machines and high speed trains.
 
     EMI Filters. The Company's EMI filter is a feedthrough filter capacitor
that blocks a broad range of frequencies and is available in small form factors.
The Company's patented EMI filter enables it to meet the increasing demand for
smaller filters by mounting the feedthrough filter on the surface of an
implantable device. In the implantable heart defibrillator market, the Company
believes its EMI feedthrough filter is a market leader because of its small size
and effective broadband filtering capabilities. The Company currently supplies
EMI filters to CPI/Guidant for defibrillator and pacemaker applications and has
a contract to supply the Pacesetter division of St. Jude Medical, Inc. with EMI
filters for pacemakers. The Company's EMI filters are also sold for military and
space program applications.
 
     Industrial Computers and Subsystems. The Company's industrial computing
products, incorporating passive backplane architecture, offer the advantages of
high input/output slot capacity, fault tolerance and low cost demanded by OEMs.
The Company is currently developing new products based on CompactPCI
architecture which incorporate the cost effectiveness and design flexibility of
passive backplane architecture and provide increased ruggedness and fault
tolerance in a smaller form factor. The Company believes it is a
 
                                       30
<PAGE>   31
 
leading supplier of passive backplane systems, particularly for the growing
computer telephony and other telecommunications markets.
 
     Government Funded Research and Systems Development. Maxwell continues to
provide high technology research and systems development to the United States
Department of Defense, other government agencies and national laboratories. The
Company is a leader in pulsed power research, weapons effects simulations and
complex computer modeling and analysis of physical phenomena. Additionally, the
Company's expertise addresses the government's needs in power quality and power
conditioning for large, high energy systems, electric and electrothermal gun
research, advanced pulsed power development, high-power microwave source
development and technology oversight for space-based sensor development.
 
STRATEGY
 
     Having expanded its business beyond funded research and development
activities to a focus on commercial opportunities, Maxwell intends to continue
to execute its commercialization strategy, develop products incorporating core
technologies and identify and penetrate key markets for its products. The
Company's strategy encompasses the following elements:
 
     Capitalize on Technical Expertise. Through its long history of research and
development in pulsed power, the Company has become a leader in the development
of commercial products based on pulsed power technologies and intends to
continue to capitalize on its technical expertise in this area. In the wireless
communications market, the Company has developed ultracapacitor products that
extend battery life and increase functionality in devices such as two-way
pagers. In the purification systems market, the Company has leveraged its
expertise in pulsed power to create systems which are designed to offer rapid,
"in-line" decontamination for food packaging and medical product manufacturing,
enabling customers to achieve increased production efficiency. The Company
intends to continue pursuing research and development programs, principally
those funded by strategic partners and the government, that enhance its
technical expertise and enable improvement of existing products and development
of additional products.
 
     Focus on Selected Large and Growing Commercial Markets. In recent years,
the Company has chosen to enter selected large and growing commercial markets in
which the Company believes it has enabling technology or in which the Company's
technical expertise offers a competitive advantage. For its ultracapacitor
products, the Company has targeted the wireless communications, power quality
and automotive markets in which battery performance is a critical issue.
Similarly, the Company's EMI filter business is focusing on medical applications
in which manufacturers are increasingly concerned about the effects of EMI on
implantable devices. The Company intends to increase penetration of its current
target markets and to continue pursuing clearly defined commercial market
opportunities that enable it to leverage its core technologies.
 
     Leverage Strategic Partnerships. The Company has established a number of
strategic partnerships with industry leaders for product development, marketing
and sales. Through these strategic partnerships, Maxwell seeks to obtain
specific market knowledge and enhanced understanding of market demands and
needs, access to funding for continued product development, product and customer
validation and a channel for market penetration. In recent years the Company has
formed or expanded strategic partnerships with, among others, Tetra Pak, a
worldwide leader in food packaging equipment, to develop sterilization systems
for incorporation into food packaging machinery, PacifiCorp, a diversified
utility holding company, to develop and market ultracapacitor products for the
power quality marketplace, a leading automobile manufacturer to develop
ultracapacitors as battery supplements in electric and hybrid electric vehicles
and an international restaurant chain to develop a PureBright system for water
treatment. The Company intends to leverage its existing strategic partnerships
and seek new strategic partners in promising markets.
 
     Expand International Presence. The Company intends to pursue international
markets as key avenues for growth and increase the percentage of sales generated
in international markets. In fiscal 1997, the Company's international sales were
12.4% of total sales, compared to 9.3% of total sales in fiscal 1996. In
furtherance of its strategy, the Company has concluded key strategic
partnerships with international companies such as an international wireless
communications company, a leading automobile manufacturer
 
                                       31
<PAGE>   32
 
and Tetra Pak. In 1997, the Company opened a sales office in London focused on
purification systems and industrial computers.
 
     Create Focused Centers of Expertise. As part of its shift to a
commercially-oriented business, in 1996 the Company completed a reorganization
that combined like and synergistic businesses into business units, creating
focused centers of expertise. The Company intends to continue operating in
business units focused on clearly defined markets. The Company believes that
this structure facilitates the management and commercialization of its diverse
technology base. The Company has provided and will continue to provide
incentives to encourage entrepreneurism from its employees and senior managers.
 
PRODUCTS
 
  Ultracapacitors
 
     Maxwell's PowerCache ultracapacitor represents a significant improvement in
ultracapacitors. The Company's ultracapacitors are distinguished by the large
amount of energy they can store in a given physical volume. The Company's
ultracapacitor is scalable in that it can be manufactured in a broad range of
shapes and sizes. Currently, the Company is producing ultracapacitors from
matchbook size to cells measuring 2" x 2" x 6", while maintaining the same high
energy storage per unit volume. The Company's ultracapacitors can be linked to
supply higher power for applications such as automotive and power quality
systems. The Company's ultracapacitors range in price from a few dollars to over
$1,000 per cell. The Company is initially targeting the wireless communications,
power quality and automotive markets for its ultracapacitors.
 
     Wireless Communications. In wireless communications devices, PowerCache
ultracapacitors increase signal strength and significantly extend battery life
for devices that transmit in sequences of bursts. The Company's ultracapacitors
have been incorporated into portable devices dependent on battery power
including two-way pagers, wireless modems and emergency locator beacons. The
Company has developed, under a strategic partnership with a telecommunications
OEM, a matchbook size ultracapacitor that has been designed into the OEM's next
generation wireless modems and two-way pagers. The Company is constructing a
facility for volume production to meet anticipated demands of that OEM. The same
ultracapacitor is being designed into an emergency locator beacon made by
another OEM. The Company is also engaged in research and development for an
ultracapacitor for cellular telephones, which require shorter discharge times
(0.01 to 0.1 seconds) than many other wireless devices (0.1 to 3.0 seconds).
However, because substantial technical challenges must be overcome, no assurance
can be given as to whether the Company will be able to develop an ultracapacitor
suitable for use in cellular phones.
 
   
     Power Quality. The Company's ultracapacitors can function as a standby
reserve of power to be supplied in the event of an electrical interruption or
voltage fluctuation in an external power source. Maintaining power quality is
important to a variety of end users, such as manufacturers using automated
production equipment, for whom power interruptions can cause substantial product
losses and restart delays, and computer-intensive businesses to which data
losses can cause substantial expense. Maxwell's strategic partner in the power
quality market is PacifiCorp, a leading utility company. PacifiCorp is providing
substantial development funding and will be selling distributed energy
generating systems incorporating the Company's ultracapacitors, utilizing
ultracapacitors in its own backup systems and marketing ultracapacitor systems
to industrial customers for whom power quality is an important concern. Maxwell
has sold PacifiCorp a 56-volt, 300,000 joule bank of ultracapacitors for
demonstration purposes consisting of 56 cells connected in series and parallel,
with each cell 2" x 2" x 6" and having 2,700 farad capacitance. The Company is
manufacturing an additional 56-volt bank and a 170-volt bank for demonstration
and application purposes, with the 170-volt bank specifically intended to
address the power quality requirements of semiconductor manufacturers.
Additional potential applications include remote telephone switching offices and
utility switching stations handling major power grid realignments.
    
 
     Automotive. In conventional combustion engine vehicles, the Company's
PowerCache ultracapacitor has applications in catalytic converter pre-heating,
air bag deployment, seat belt tightening and engine ignition. In addition, the
Company's ultracapacitor may create significant energy efficiencies by enabling
the replacement of vacuum and hydraulic subsystems for power steering and power
brakes with electrical subsystems utilizing
 
                                       32
<PAGE>   33
 
pulsed power. In electric vehicles, the Company's ultracapacitor can reduce the
load on the battery pack by using its stored energy for acceleration power and
recapturing energy otherwise lost during braking. Ultracapacitors can thus
significantly extend battery life and improve driving range. Similarly, in
hybrid electric vehicles, the ultracapacitor provides acceleration power for
passing and hill climbing, thereby allowing highly efficient, low pollution
constant power engines to be used. The timing of development and consumer
acceptance of electric vehicles is uncertain because such acceptance is driven
by factors including legislative mandates and continued technical improvement.
As a result, the Company believes market acceptance of ultracapacitor use in
electrical subsystems for combustion vehicles will precede widespread use of
electric vehicles and may provide a larger initial potential market for
ultracapacitors. Three automobile manufacturers and two automotive component
manufacturers are in discussions with the Company to utilize ultracapacitors in
the development of electrical subsystems for combustion vehicles. The Company
has sold ultracapacitors to leading automotive manufacturers for tests in
electric vehicles.
 
  Purification Systems
 
     The Company's PureBright and CoolPure purification systems are based on two
patented pulsed power processes incorporating capacitors and other pulsed power
components designed and manufactured by the Company. The PureBright system
utilizes intense pulsed light to kill microorganisms, including cryptosporidium,
viruses and spores in water and pharmaceuticals, on food and food packaging
surfaces and on medical products. The CoolPure system uses a direct electrical
pulse to kill microorganisms in liquids and liquid foods, such as juices, dairy
products and sauces. The Company's PureBright product line includes compact
water treatment systems and large industrial systems that can be used on a
standalone basis or as a component designed into other industrial equipment.
Prices of the Company's purification systems range from a few thousand dollars
to over $100,000. PureBright systems are in field testing for restaurant water
treatment applications, have been designed in as an option in Tetra Pak's next
generation food packaging machinery and are in the FDA approval process for use
as a sterilization device for certain medical products manufactured by other
strategic partners.
 
   
     Water Quality. The Company, in a strategic partnership with an
international restaurant chain, has developed a PureBright system for water
treatment in restaurants. The PureBright system is designed to replace
ultraviolet light treatment and chemical treatments such as chlorine for
elimination of microorganisms in water. The PureBright water treatment system
designed for restaurant use is a four-gallon per minute wall-mounted unit with
dimensions of 16" x 30" x 11" and plugs into standard electrical power outlets.
The restaurant partner is now engaged in field testing the on-site performance
of the system. The Company has granted exclusivity for restaurant use to its
strategic partner for an eighteen-month period, but intends to market the system
for point-of-entry or point-of-use applications to hotels, laboratories,
manufacturers, healthcare providers and, after the exclusivity period, other
restaurant operators. The Company believes PureBright technology will be
particularly useful in developing nations because of uneven water quality levels
found in some of those countries. The Company believes PureBright can be an
effective and easily monitored safeguard against domestic water quality
problems, such as cryptosporidium outbreaks, that are not effectively controlled
by some conventional technologies.
    
 
     Medical and Pharmaceutical Product Sterilization. Maxwell is also marketing
PureBright systems for sterilization of medical and pharmaceutical products and
packaging materials. PureBright systems for medical and pharmaceutical
applications consist of a standard enclosure containing the pulsed power
delivery system, with dimensions of 2' x 3' x 6', linked by cable to a flash
lamp unit. The flash lamp unit is configurable to the customer's specific
requirements for integration into processing line equipment. The Company has
strategic partnerships with medical and pharmaceutical product companies, which
are seeking FDA approval for PureBright's integration into blow-fill-seal
plastic packaging equipment and certain disposable medical product manufacturing
equipment. The Company also intends to market PureBright for medical product
sterilization applications where it would provide a cost-effective alternative
to expensive, time consuming autoclave heat-based sterilization systems.
 
     Food Packaging. Through a long-standing partnership with Tetra Pak, the
Company has developed PureBright systems for food packaging applications similar
in size, price and customizable features to the
 
                                       33
<PAGE>   34
 
PureBright systems for medical and pharmaceutical products. Tetra Pak has
incorporated PureBright as an option in its next generation container filling
machines. The Company's relationship with Tetra Pak prohibits the Company from
pursuing additional customers in most food packaging applications, but permits
it to pursue additional customers in cup, lid, bottle cap and hot-filled pouch
purification applications.
 
     Food Treatment. PureBright systems similar to those used in medical and
food packaging may also have application in the market for reducing microbial
contamination on the surface of food products. The Company believes reduction of
surface microbes will extend the shelf life of a variety of foods. Among other
potential applications, the Japanese government is funding a study testing the
efficacy of purification systems, including the PureBright system, for meat
decontamination.
 
     The CoolPure system, currently in prototype stage, kills microorganisms
using pulses of electricity, rather than light. The CoolPure system is being
designed to be used with opaque or cloudy liquids or pumpable foods such as
juices, dairy products and sauces, which the PureBright light pulses are unable
to penetrate. CoolPure is effective against vegetative bacteria, a narrower
range of microorganisms than those controlled by PureBright. The Company has
supplied CoolPure prototypes to the United States Army and an international food
products company. CoolPure is composed of a 89" x 68" x 84" pulsed power unit,
linked to a smaller treatment chamber with electrodes applying the electrical
pulses.
 
  EMI Filters
 
     Maxwell's patented EMI feedthrough filter capacitor absorbs electromagnetic
energy from a broad band of frequencies. The Company believes it has significant
advantages over competing technologies because its filters block a broad band of
EMI frequencies from entering the device, in contrast to filters that are
embedded in the internal circuitry and are designed to absorb only a specific
frequency. Furthermore, the Company's surface mount filter design enables a
smaller form factor than competing feedthrough filters. The FDA has approved the
implantable pacemakers and heart defibrillators that contain the Company's
filter.
 
     The Company currently has supply agreements with two of the largest
manufacturers of implantable medical devices, CPI/Guidant, whose implantable
defibrillators use the Company's filters, and the Pacesetter division of St.
Jude Medical, Inc., which is incorporating the Company's EMI filter in certain
of its implantable heart pacemakers. The Pacesetter contract, awarded in March
1997, expands the market penetration of the Company's device from implantable
defibrillators to pacemakers. The Company also manufacturers and sells
high-reliability feedthrough filter capacitors for military and commercial space
program applications in which broad band screening of EMI and device size are
important specifications.
 
  Other Pulsed Power Products
 
     The Company designs, manufactures and sells a number of electrical
components, including a range of high voltage capacitors supplying from
thousands of volts to tens of thousands of volts. Maxwell has long been a major
supplier of capacitors used in portable and stationary heart defibrillators used
by medical personnel to treat heart attacks. The Company also manufactures high
voltage capacitors for lasers for medical applications such as eye surgery,
dentistry and dermatology, and for industrial applications such as
microlithography for semiconductor manufacturing, flat panel annealing for LCD
displays, marking, welding, drilling and cutting. Other high-voltage capacitors
are sold for use in specialized applications and for use in large systems for
the United States government.
 
     The Company has licensed traction capacitor technology from Thomson-CSF, a
multi-national industrial company, with rights to manufacture and distribute
such products in the United States. Traction capacitors, used in locomotives to
condition electric power running from a diesel generator to the electric motor,
have been used for years in Europe's high speed trains. Maxwell is supplying
traction capacitors to the consortium led by Bombardier and GEC Alsthom selected
to build AMTRAK's Northeast Corridor train, which is expected to be the first
high speed tilt train system in the United States. AMTRAK has announced that it
plans to upgrade its rail network to high speed trains nationwide over the next
20 years and the Company intends to pursue opportunities with locomotive
manufacturers to supply traction capacitors as well as capacitors for braking
and other subsystems for these programs.
 
                                       34
<PAGE>   35
 
     The Company also develops, manufactures and sells a line of compact power
supplies used for charging high voltage capacitors for the medical and
industrial laser markets. Portions of this product line are manufactured under
license from Auburn University.
 
  Government Funded Research and Systems Development
 
     Maxwell is engaged in a variety of research and development programs in
pulsed power, weapons effects simulation and pulsed power and sensor systems
design and construction. These services are primarily supplied to the United
States government and its agencies including the Air Force and the Defense
Special Weapons Agency. The Company also provides systems and services to
national laboratories and industrial and defense companies. The Company
typically performs research and development under contracts that allow the
Company to apply developed technology in commercial markets.
 
     The Company performs above-ground simulation and testing of weapons effects
via the design and operation of large-scale X-ray and electromagnetic pulse
producing systems. These systems employ the Company's capacitors and other
pulsed power components. The Company also has developed power quality systems
and power conditioning systems, including a power conditioning system for an
accelerator for tritium production. The Company provides technology oversight
and planning for space-based sensor design and development and testing of
hardening techniques for electronics modified to withstand hazardous effects of
hostile environments. In addition, the Company performs on-site technical,
operations and maintenance support at government facilities involving
applications such as electric and electrothermal gun research, advanced pulsed
power development, high-power microwave source development, energy storage and
system integration of advanced concept demonstration experiments.
 
     A potential commercial application stemming from the Company's funded
research and systems development is ElectroBlast, a process initially identified
using expertise gained in studying effects of advanced weapons technology. The
ElectroBlast process uses a pulsed electric discharge to fracture rock by
rapidly expanding a non-toxic material. If successful, the technology would, in
contrast to dynamite and other conventional explosives, produce no toxic fumes
and minimize dust and flyrock, providing opportunities for continuous tunneling
and thus potentially significant economic advantages over conventional methods.
ElectroBlast is also being investigated as an alternative to explosives in
demolition of concrete structures. The technology has been tested in underground
mines, but is still in the early development stage.
 
  Industrial Computers and Subsystems
 
     Through its industrial computers and subsystems business acquired in 1991,
the Company designs, manufactures and supplies standard, custom and semi-custom
industrial computer modules, platforms and fully-integrated systems to OEMs, on
a worldwide basis. The Company's product line ranges from enclosures, CPU cards
and backplanes to fully integrated and highly customized computer systems. The
Company's product line primarily employs passive backplane architecture and the
Company is completing the development of its first CompactPCI products. Prices
for the Company's standard products such as enclosures, CPU cards and fully
integrated systems range from $1,500 to $10,000.
 
     The Company's components and systems are design-intensive applications
based on Intel's x86 and Pentium architecture and are PC-compatible. The
Company's products are utilized primarily in computer telephony equipment such
as voice-mail servers, interactive voice response servers, telephone switching
servers and telephone network transaction control servers. The Company's
industrial computers are also used in a number of non-telecommunication
applications such as medical (CT Scan, MRI equipment and drug dispensing
equipment), test instrumentation (data acquisition and test), imaging
instrumentation (large-scale optical reading and sorting equipment) and
manufacturing automation (pick-and-place equipment). In addition, the Company
has recently begun marketing its computers as private-labeled products to file
server manufacturers for resale into the small-to-medium file server market.
 
     The Company's enclosures utilize passive backplane technology in which CPU
and input/output functionality is provided by add-in cards for flexibility and
ease of replacement. The Company provides fault resistant and fault tolerant
systems that include redundant components -- cooling fans, power supplies and
 
                                       35
<PAGE>   36
 
hard disks -- that can be "hot-swapped" without shutting down or otherwise
affecting the system. The Company also provides enclosures with segmented
backplanes that allow two or more independent computer systems to operate within
a single enclosure, an important feature in systems in which fault tolerance or
size requirements are critical. Enclosures are available to support from six to
twenty-five slots and can be configured in rack mount, table top or tower
models.
 
     The Company's products employ several industry standard buses, form factors
and interfaces, which enable OEMs to integrate the Company's products with many
widely available and economical third party products thereby reducing reliance
on potentially higher priced or scarce custom component parts. The Company's
products incorporate standard bus architecture including ISA Bus, PCI Bus, SCSI
Bus and IDE, and microprocessors in the Intel family up to the Pentium Pro and
Pentium II, following its release, and support operating systems including
Windows 95, Windows NT and Solaris.
 
  Computer-Based Analytic Services and Software
 
     Maxwell provides complex computer-based analytic services, primarily to the
United States Department of Defense, and sells various commercial software
products. A primary focus of the Company's government funded research is
computer modeling of physical phenomena and improvement of the architecture of
the computer-based systems and networks used for transmitting and applying data.
The Company has developed highly advanced computer software for modeling and
predicting physical effects such as electromagnetic pulses, electric currents,
shock waves, ground shock and ground movement. The Company uses this software to
perform analysis of weapons effects and systems hardening, space environment
effects and satellite design, electric propulsion and geothermal and earthquake
effects.
 
     In commercial markets, Maxwell provides software-related products and
services for cost accounting and management information systems, Internet
content, educational software and public safety and criminal justice information
systems. The Company is marketing its cost accounting and management information
software programs, which incorporate sophisticated job cost and activity-based
accounting capabilities, to large contractors and others interested in tracking
costs by job, activity or cost center. The software is sold under the JAMIS
(Job-cost Accounting and Management Information Systems) label, and contains
modules necessary for a comprehensive, enterprise-wide system including
accounting functions, Federal Acquisition Regulation compliant billings, human
resources, contracts and purchasing. Development continued in fiscal 1997 on a
new, open platform, graphical user interface based version of this software. The
Company completed development in fiscal 1997 of JAMIS Timecard an online time
recording system that currently operates in a client-server environment
including remote-site entry and is developing Internet compatibility for this
product. The Company also provides Internet content including real-time
municipal traffic information available to users on a co-branded basis with the
Yahoo! search directory and with Microsoft on the upcoming version of its
Internet browser. The Company also offers wide area and local area network and
software integration services. The Company offers interactive educational
software compact discs for mathematics and physical science instruction designed
for in-classroom use. The Company also markets and sells public safety and
criminal justice information system products and integration services, including
client-server based software for criminal case management, law enforcement
records management, computer-aided dispatch, jail management, and fire and
emergency record management.
 
STRATEGIC PARTNERSHIPS
 
     In recent years the Company has formed or expanded several strategic
partnerships. Through these alliances, Maxwell obtains an enhanced understanding
of market demands and needs, access to funding for continued development and
commercialization of products, and a channel for market penetration. The
strategic partner obtains an opportunity for early adoption or use of the
product or service.
 
     For purification products, the Company frequently accepts initial funding
to engineer a specific application for the strategic partner, thus reducing the
Company's product development expense, and in exchange the strategic partner
often receives a period of exclusivity for the application. The Company's
longest strategic relationship is with Tetra Pak, which has provided research
and product development funding to the
 
                                       36
<PAGE>   37
 
   
Company's PurePulse Technologies, Inc. subsidiary since its inception, and owns
approximately 5% of PurePulse. The Company's PureBright system has been
designed-in as an option in Tetra Pak's next generation food packaging
machinery. Tetra Pak has an exclusive license for PureBright in most food
packaging applications. In similar fashion, the Company has received funding
from an international restaurant chain for development of PureBright for water
treatment applications. The Company and this strategic partner have entered into
an agreement whereby the Company will supply PureBright units to the restaurant
chain, contingent upon successful completion of field testing now in process.
The strategic partner has an eighteen-month exclusive right to use PureBright in
its restaurants beginning when the first system is ordered. For CoolPure, an
international food products company is providing product development funding, is
currently evaluating prototype units and has been granted a period of
exclusivity for use of CoolPure in some applications.
    
 
   
     The Company has also developed strategic partner relationships for product
development and marketing of ultracapacitors. PacifiCorp and the Company are
collaborating on product development and testing of ultracapacitors for use in
power quality applications and are jointly marketing ultracapacitors to
industrial customers for these applications. PacifiCorp is providing $5 million
in cash in addition to certain equipment and other assets with an aggregate cost
of approximately $2 million in exchange for a 7.5% equity interest in the
Company's subsidiary, Maxwell Energy Products, Inc., the subsidiary in which
ultracapacitor operations are based, as well as preferred access to the
technology, marketing and supply rights and continued joint product development
commitment. PacifiCorp also has the right to exchange its equity interest in
Maxwell Energy Products, Inc. for the Company's Common Stock after one year and
for a five year period thereafter (if the subsidiary has not completed an
initial public offering), based on the relative value of the Company's shares
and PacifiCorp's interest in Maxwell Energy Products, Inc. at that time. A
leading automobile manufacturer provided funding for ultracapacitor development
and purchased prototype units, with the Company providing technology disclosure
and a period of exclusivity that has now expired. The Company is negotiating
with this strategic partner for an expanded development agreement.
    
 
     The Company's future success will depend in part on its continued
relationships with various of its strategic partners, its ability to enter into
other similar collaborative arrangements, the interest of certain of the
Company's strategic partners in the potential products under development and,
eventually, their success in marketing or willingness to purchase any such
products. The exclusivity rights granted to strategic partners may inhibit the
Company's ability to find a wider market for certain of its commercial products
and thus may materially reduce revenues during the exclusivity period. See "Risk
Factors -- Extensive Reliance on Strategic Relationships; Restrictions Due to
Exclusivity Rights."
 
                                       37
<PAGE>   38
 
CUSTOMERS
 
     The Company's products and services support a broad base of over 1,000
customers that spans each business segment. A number of the Company's customers
and strategic partners that are evaluating or are in the early stages of
adopting the Company's ultracapacitor products or purification systems have
required confidentiality from the Company and therefore are not named in this
prospectus or identified in the following table. Such customers include a major
wireless telecommunications device manufacturer and automotive manufacturers for
ultracapacitor products and an international restaurant chain, an international
food products company and a medical products manufacturer for purification
products. The following table is a representative list of the Company's
customers by product family.
 
<TABLE>
<CAPTION>
             CUSTOMER                      APPLICATION                       PRODUCT
- ----------------------------------  --------------------------  ----------------------------------
<S>                                 <C>                         <C>
PULSED POWER AND ELECTRONIC COMPONENTS
  Cubic Defense Systems, Inc.       Defense                     Nuclear Event Detector
  General Electric Medical Systems  Medical X-Ray Equipment     Resistors
  Hewlett-Packard                   Medical Equipment           Defibrillator Capacitors
  Los Alamos National Laboratory    Physics Research            Switches, Capacitors
  PacifiCorp                        Power Quality               Ultracapacitors
  Pulse Sciences, Inc.              Physics Research            Capacitors, Power Supplies
  SLS Biophile, Ltd.                Medical Laser Equipment     Capacitors, Power Supplies
  TetraPak                          Food Packaging              PureBright Purification Systems
  Western Atlas                     Oil Well/Logging            High Temperature Capacitors
  Zoll Medical                      Medical Equipment           Defibrillator Capacitors
EMI FILTERS
  Baker Hughes Inteq                Oil Field Services          Capacitors, EMI Filters
  Cardiac Control Systems           Medical                     EMI Filters
  Guidant/CPI                       Medical                     EMI Filters
  Lockheed Martin                   Military                    EMI Filters
  St. Jude/Pacesetter               Medical                     EMI Filters
INDUSTRIAL COMPUTERS AND SUBSYSTEMS
  Active Voice Inc.                 Voice Mail Systems          Enclosures, CPU Boards
  Allan Crawford Associates         Canadian Distributor        All Products
  Applied Voice Technology, Inc.    Voice Mail Systems          Enclosures, CPU Boards
  AT&T                              Computer Telephony          Fault Tolerant Platforms, CPU
                                                                  Boards
  Banctec Technologies              Document Sorting Systems    Enclosures, CPU Boards
  Brite Voice                       Interactive Voice Response  Enclosures
  Comverse Information Systems      Computer Telephony          Fault Tolerant Platforms
  Digital Equipment Corp.           Computer Platforms          Enclosures, Fault Tolerant
                                                                  Platforms
  Lucent Technologies               Voice Messaging             Computer Platforms
  Videoserver Inc.                  Video Conferencing          Enclosures, CPU Boards
GOVERNMENT FUNDED RESEARCH AND SYSTEMS DEVELOPMENT
  Defense Special Weapons Agency    Weapons Effects Simulation  Pulsed Power Operations, Analysis
  Kyobuto Boeki Kaisha, Limited     Geophysics and Geothermal   Engineering, Scientific Support
  Los Alamos National Laboratory    Physics Research            High Voltage Power Supplies
  Mission Research Corporation      Electromagnetic             Electronic Testing
                                      Interaction
  NASA                              Space Environment Effects   Physics Models and Effects
                                      on Systems                  Analysis
  Sandia National Laboratories      Pulsed Power Research       Engineering, Scientific Support
  U.S. Air Force Phillips Lab       Electronic Sensors for      Technology Oversight and Analysis
                                      Space
                                    Weapons Effects Simulation  Pulsed Power Operations and
                                                                  Support
  U.S. Air Force Hanscom AFB        Space Physics               Engineering and Scientific
                                                                  Analysis
</TABLE>
 
                                       38
<PAGE>   39
 
     Products and services provided to the Department of Defense constituted a
substantial portion of the Company's sales in fiscal 1997, with sales to the
United States Air Force constituting 14% of consolidated sales. Only one other
individual customer, Lucent, accounted for more than 10% of consolidated sales.
Lucent accounted for approximately 12% of consolidated fiscal 1997 sales and is
a significant customer in the Industrial Computers and Subsystems business
segment. The Company's products that comprise a significant portion of its sales
to Lucent have not been designed into Lucent's next generation products and the
Company therefore expects that its business with Lucent will decline
substantially in the second half of fiscal 1998 and subsequent periods.
Customers for the Company's software products include federal, state and local
government organizations such as judicial organizations and school districts,
government contractors and textbook publishers.
 
SALES AND MARKETING
 
     The Company's commercial products sales teams consist of sales personnel
based in its manufacturing facilities and for the Company's industrial computing
products, geographically-dispersed sales offices. These sales teams are often
supported by scientists, application engineers and technical specialists. Sales
and marketing for the Company's products in the United States is handled
directly by the Company. The Company utilizes sales representatives to assist in
the marketing of its products outside the United States and has recently opened
a sales office in London focused on marketing and selling purification systems
and industrial computers in Europe. The Company conducts marketing programs
intended to position and promote its products and services, including trade
shows, seminars, advertising, public relations, distribution of product
literature and a website on the Internet.
 
     As emerging technologies require customer acceptance of new and different
technical approaches, the sales effort for new products includes substantial
involvement from engineers to demonstrate the applications of the Company's
products. Senior management is also significantly involved in gaining access to
customers or potential strategic partners to discuss the Company's emerging
product lines. The time required to demonstrate technical and cost effectiveness
for new technologies often requires an extended initial marketing effort by the
Company. As a result, an important part of the sales strategy for new products
is to capitalize on strategic partnerships formed to develop the product and
establish an avenue to obtain product validation.
 
     In its technology programs and systems segment, the Company's sales and
marketing is primarily conducted by key scientists and other members of its
technical staff. A large portion of this business is obtained in response to
requests for proposals by the government, with the Company's bids and proposals
focused on providing the government with detailed technical information as well
as competitive pricing. Successful performance of the Company's contracts is an
important factor in securing follow-on business, an important source of new
contracts for the Company.
 
     The Company has limited experience marketing and selling ultracapacitors
and purification systems. To market these products, the Company will be required
to develop a marketing and sales force that will be able to effectively
demonstrate the advantages of these products over competing products and other
traditional solutions. Furthermore, the highly technical nature of the Company's
products limits the pool of potential sales personnel. By entering into
agreements with sales representatives, the Company may be substantially
dependent upon the efforts of others in deriving commercial benefits from its
products. See "Risk Factors -- Limited Sales and Marketing Experience."
 
COMPETITION
 
     In most of the markets in which it operates, Maxwell has a number of
competitors, many of which have longer operating histories, significantly
greater financial, technical, marketing and other resources, greater name
recognition, and a larger installed base of customers than the Company. In some
of the Company's business areas involving emerging technologies, the Company
faces competition from products utilizing alternative technologies.
 
     Although a number of companies are researching and developing
ultracapacitor technology, the Company has two principal competitors in
ultracapacitor products, Panasonic, a division of Matsushita
 
                                       39
<PAGE>   40
 
Electric Industries, Ltd., and SAFT, a unit of the Alcatel-Alsthom Group and a
prominent international battery supplier. The key competitive factors are
performance (energy stored and power delivered per unit volume), form factor and
breadth of product offerings. The Company believes it competes favorably with
respect to each of these factors. In addition, the Company will rely on
strategic partnerships to secure design wins and on aggressive pricing where
necessary. Ultracapacitors also compete with other technologies including
high-power batteries in power quality and automobile load leveling applications,
flywheels in power quality and automotive applications (including as a power
source for electric vehicles), and superconducting magnetic energy storage in
power quality.
 
     The Company does not believe that its PureBright products have direct
competitors in the application of pulsed power in the form of light to water
treatment, food packaging or sterilization of medical or pharmaceutical
products. Pulsed power competes with many other established and developing
technologies, most of which are available in forms that are significantly less
expensive than the Company's products. For water treatment, the Company faces
competition from many alternative technologies including filtration systems,
reverse osmosis, chemicals, distillation technology and continuous wave
ultraviolet light systems. Alternative technologies also exist for the
sterilization, disinfection and purification of medical products, food packaging
and food products, including technologies such as autoclave heat sterilization,
chemicals, gamma radiation and modified atmosphere packaging. The Company
believes its purification systems will be competitive because of their efficacy
in microbial reduction and their ability to be utilized in processing lines for
food packaging or medical and pharmaceutical products without interruption of
the industrial process and without producing hazardous wastes.
 
     The Company has one principal competitor in United States government funded
pulsed power research and weapons effects simulation, Physics International, a
unit of Primex Corporation. Contracts are awarded by the Department of Defense
based on cost and technical expertise. The Company believes it has the required
technical expertise in the area, and that it has streamlined its business so as
to competitively bid for contracts while remaining profitable.
 
     The Company's EMI filter business competes with AVX Filter, a subsidiary of
Kyocera, in the EMI feedthrough filter market. The competitive factors in this
market include price, breadth of electromagnetic spectrum filtered, small size
and reliability. The Company believes it competes favorably with respect to each
of these factors. The Company believes its patent, for mounting of the filter on
the surface of an implantable medical device's feedthrough, provides a
competitive advantage by allowing manufacture of a smaller sized device.
 
     The Company's traditional high voltage capacitors face competition from
numerous independent electronics suppliers in markets for storage capacitors,
medical and industrial applications and use in large systems by the United
States government as well as from component manufacturing operations within
certain medical and industrial OEM organizations. The largest independent
competitor in the United States is Aerovox, which has competing high voltage
capacitor lines very similar to the Company's. Customers generally select
capacitor components for systems based on criteria such as price, functionality
(i.e. voltage requirements) and past experience with a vendor. The Company
focuses on high-end, high power capacitors, maintains relationships with
customers geared towards achieving design wins and offers competitive pricing.
 
     In the Company's target markets for passive backplane based industrial
computers and subsystems, its competitors include Texas Microsystems,
Diversified Technology, Advantech, the Industrial Computer Source division of
Dynatech, Teknor and Trenton, resulting in a highly fragmented market in which
no one entrant is dominant. Competitive factors in this market include price,
design expertise, functionality and fault tolerance. The Company believes it
competes favorably with respect to each of these factors. CompactPCI is an
emerging technology that is neither widely marketed nor accepted; it will
potentially compete with passive backplane and much more widely installed
VME-based systems for market share. The competitive factors for CompactPCI are
very similar to passive backplane systems.
 
     In complex computer-based analytic services, the Company often competes
with larger, better funded entities to secure government and other contracts.
The Company relies on its expertise in modeling and analysis and ability to make
competitive bids to secure contracts. In commercial software, the JAMIS cost
 
                                       40
<PAGE>   41
 
accounting system competes principally with one similar government contract
based software application produced by Deltek Systems, as well as with numerous
off-the-shelf and customized accounting software products. The Company relies on
superior performance and an attractive price point to secure market share. The
Company has no significant competitors in the provision of real-time traffic
reports over the Internet, but believes barriers to entry are low. In all of its
businesses, the Company's competitive position depends in part on its ability to
hire and retain highly qualified engineers, scientists and management personnel.
See "Risk Factors -- Competition."
 
MANUFACTURING AND SUPPLIERS
 
     Maxwell currently manufactures all of its industrial computers and
subsystems, pulsed power components and EMI filters. The Company has four
manufacturing facilities in San Diego, California and one manufacturing facility
in Carson City, Nevada. The Company's EMI filters are manufactured at the Carson
City location. For two facilities in San Diego, the Company has obtained ISO
9001 certification and is seeking ISO 9001 certification for other facilities.
The Company performs low volume manufacturing for certain products, such as
purification systems and major pulsed power systems. In fiscal 1998, the Company
expects to begin volume manufacturing of ultracapacitors, and is preparing for
volume manufacturing of PureBright water treatment systems. For certain emerging
products, the Company will evaluate whether outsourcing or licensing
arrangements are preferable to establishing its own high volume manufacturing
capacity for that product.
 
     The Company generally purchases components and materials, such as
electronics components, dielectric materials and enclosures of metal and
plastic, from a number of suppliers. In certain operations, the Company relies
on a limited number of suppliers or a single supplier. Although the Company
believes there are alternative sources for components and materials currently
obtained from a single source, there can be no assurance that the Company will
be able to identify and qualify alternative suppliers in a timely manner.
Maxwell's industrial computer business relies on single qualified suppliers for
some of its critical components, primarily CPU boards, and the Company considers
the sources of supply to be adequate. However, after one of the Company's
significant OEM customers specified a particular source for power supplies, in
fiscal 1996 the Company experienced interruptions in shipments from this vendor
and the interruption had a materially adverse short-term impact on the Company's
operations. The Company currently has a single qualified supplier for one
component of ultracapacitors and is contractually obligated to qualify at least
one additional supplier of such components. No assurance can be given that
qualification will be completed in a timely manner. Additionally, the EMI filter
produced by the Company relies on a sole domestic source for one component, and
that supplier has indicated its plans to design, build and sell a competing
filter in the future. The Company believes this supplier will continue to sell
to the Company but, if necessary, the Company could replace this supplier.
Although the Company seeks to reduce its dependence on sole and limited source
suppliers, the partial or complete loss of these sources could have at least a
temporary material adverse effect on the Company's results of operations and
damage customer relationships due to the complexity of the products supplied and
the significant amount of time required to qualify new suppliers. See "Risk
Factors -- Reliance on Third Party Suppliers."
 
     The Company has limited experience with volume manufacturing of commercial
products. To date, the Company has not manufactured in volume its
ultracapacitors or purification systems. The Company may face challenges in
scaling up production of its new products, especially those products that
contain newly developed technologies. In addition, the Company will need to
expand its current facilities or obtain additional facilities in order to
manufacture a substantial quantity of its products. There can be no assurance
that the Company will be successful in expanding its facilities or obtaining
additional facilities, or that it will be able to overcome the management,
technological, engineering and other challenges associated with the production
of significant quantities of products at acceptable cost on a timely basis.
Outsourcing of manufacturing involves risks with respect to quality assurance,
cost and the absence of close engineering support. See "Risk Factors -- Limited
Volume Manufacturing Experience."
 
                                       41
<PAGE>   42
 
RESEARCH AND DEVELOPMENT
 
     The Company conducts internally-funded engineering, research and
development to refine and expand its products and services. Approximately 25% of
the reported research and development expense consists of the Company's
preparation of proposals principally for contracts for funded research and
development for the government. For fiscal 1997, 1996 and 1995, expenditures for
internally-funded research and development were approximately $5,303,000,
$5,081,000 and $5,038,000, respectively.
 
     A substantial portion of the Company's revenues in its Technology Programs
and Systems business segment consists of customer-funded research and
development activities. Additionally, in the Power Conversion Products business
segment, certain large contracts accounted for approximately 25% of sales in the
business segment in fiscal 1997, which contracts represented primarily various
strategic partnership arrangements involving customer funding of research and
product development as well as prototype sales. See "-- Strategy;" "-- Strategic
Partnerships" and "-- Products."
 
PATENTS, LICENSES AND TRADEMARKS
 
     The Company's success is heavily dependent upon the establishment and
maintenance of proprietary technologies. Although the Company attempts to
protect its intellectual property rights through patents, copyrights, trade
secrets and other measures, there can be no assurance that the steps taken by
the Company to protect its proprietary technologies will be adequate to prevent
misappropriation by third parties or will be adequate under the laws of some
foreign countries, which may not protect the Company's proprietary rights to the
same extent as do the laws of the United States.
 
     The Company uses employee and third-party confidentiality and
non-disclosure agreements to protect its trade secrets and unpatented know-how.
The Company requires each of its employees to enter into a proprietary rights
and non-disclosure agreement in which the employee agrees to maintain the
confidentiality of all proprietary information of the Company and, subject to
certain exceptions, to assign to the Company all rights in any proprietary
information or technology made or contributed by the employee during his or her
employment. In addition, the Company regularly enters into non-disclosure
agreements with third parties, such as consultants, potential joint venture
partners and customers.
 
     The Company has historically relied primarily on its technological and
engineering abilities and on its design and production capabilities to gain
competitive business advantages, rather than on patents or other intellectual
property rights. However, the Company does file patent applications on concepts
and processes developed by the Company's personnel, and, as its commercial
businesses expand, the Company has placed increased emphasis on patents to
provide protection for certain of its technologies and products. The Company's
success will depend in part on its ability to maintain its patents, add to them
where appropriate, and to develop new products and applications without
infringing the patent and other proprietary rights of third parties and without
breaching or otherwise losing rights in technology licenses obtained by the
Company for other products. There can be no assurance that any patent owned by
the Company will not be circumvented or challenged, that the rights granted
thereunder will provide competitive advantages to the Company or that any of the
Company's pending or future patent applications will be issued with claims of
the scope sought by the Company, if at all. If challenged, there can be no
assurance that the Company's patents (or patents under which it licenses
technology) will be held valid or enforceable. In addition, a number of the
patents and patent applications owned or licensed by the Company are subject to
"march-in" rights and non-exclusive, royalty-free, confirmatory licenses held by
various governmental agencies or other entities.
 
     Competing research and patent activity in many of the Company's
technologies is substantial and the markets are large enough that conflicting
patent and other proprietary rights claims may result in disputes or litigation.
Although the Company does not believe any of its products or proprietary rights
infringe the rights of third parties, there can be no assurance that
infringement claims will not be asserted against the Company in the future. Any
such claims, with or without merit, could be time-consuming, result in costly
litigation, cause product shipment delays or require the Company to enter into
royalty or licensing agreements. Such royalty or licensing agreements, if
required, may not be available on terms acceptable to the Company, or at all. If
infringement were established, the Company could be required to pay damages or
be enjoined from
 
                                       42
<PAGE>   43
 
making, using or selling the infringing product. Likewise, there can be no
assurance that a third party's product, if infringing on the Company's
proprietary rights, may be prevented from doing so without litigation. Any of
the foregoing could have a material adverse effect upon the Company's business,
financial condition and results of operations. See "Risk Factors -- Dependence
on Proprietary Technology."
 
BACKLOG
 
     The Company's funded backlog as of July 31, 1997 and 1996 amounted to
approximately $39 million and $38 million, respectively. The funded backlog
consists of remaining funding under cost plus contracts for tasks not yet
completed, remaining revenues to be recognized on contracts accounted for on a
percentage of completion basis and firm orders for products not yet delivered.
The Company expects to complete or deliver substantially all of its currently
funded backlog within 12 months. The unfunded portion of contracts awarded was
approximately $23 million and $28 million at July 31, 1997 and 1996,
respectively.
 
GOVERNMENT BUSINESS
 
   
     A substantial portion of the Company's sales (approximately 33% in fiscal
1997, 40% in fiscal 1996 and 43% in fiscal 1995) is derived from contracts with
the United States government, principally agencies of the United States
Department of Defense, and subcontracts with government suppliers. The
reductions in defense budgets over the past several years have affected the
Company's activities, particularly in the area of system survivability products
and services, such as weapons effects simulation and testing. The Company has
also experienced increased competition in bidding for new defense programs from
contractors seeking to replace their lost business. The Company has experienced
significant reductions in its business with the Department of Defense through
fiscal 1995 as the Department responded to reduced global threats and shrinking
defense budgets. While the Department of Defense has continued to fund, although
at lower levels, research on next-generation pulsed power concepts, the
operation of existing simulation machines has been curtailed. Three of the four
weapons effects simulators in San Diego which were designed, built, and operated
by the Company and owned by the Department of Defense ceased operation on
October 1, 1995. The Company has provided services to the Department of Defense
to assist in the closure of these facilities, and has nearly completed this
task. The Company will continue to provide testing and analysis on the fourth
simulation facility, after the closure of the other three simulation devices.
    
 
     The Company's funded government contracts are typically performable over a
one-year period. Government agencies may terminate their contracts, in whole or
in part, at their discretion, and in such event, the government agency is
obligated generally to pay the costs incurred by the Company thereunder plus a
fee based upon work completed. Contract costs for services or products supplied
to government agencies, including allocated indirect costs, are subject to audit
and adjustment. Contract costs have been reviewed and accepted by the government
through fiscal 1993. Contract revenues for periods subsequent to fiscal 1993
have been recorded in amounts which are expected to be realized upon final
review and settlement. Contracts entered into by the Company with government
agencies are fixed-price contracts or cost plus contracts. Under a fixed-price
contract, the customer agrees to pay a specific price for performance. Under a
cost plus contract, the customer agrees to pay an amount equal to the Company's
allowable costs in performing the contract, plus a fixed or incentive fee.
Certain costs of doing business, such as interest expenses and advertising
expenses, are not allowable under cost plus contracts. Greater risks are
involved under a fixed-price contract than under a cost plus contract because in
a fixed-price contract the Company assumes responsibility for providing the
specified product or services regardless of the actual costs incurred. Failure
to anticipate technical problems, estimate costs accurately or control costs
during contract performance reduces or eliminates the contemplated profit and
can result in a loss. On the other hand, the government generally permits higher
profit margins when establishing prices for fixed-price contracts because of
such risks. In the technology programs and systems business segment
approximately 77% and 82% of sales were derived from cost plus contracts in
fiscal 1997 and 1996, respectively, and the balance of sales in such years were
derived from fixed-price contracts. See "Risk Factors -- Risks Associated with
Government Business."
 
                                       43
<PAGE>   44
 
GOVERNMENT REGULATION
 
     The testing, manufacture and sale of certain of the Company's products are
subject to regulation by numerous governmental authorities. Pursuant to the
Federal Food, Drug, and Cosmetic Act, and the regulations promulgated
thereunder, the FDA regulates the preclinical and clinical testing, manufacture,
labeling, storage, distribution and promotion of food and medical products and
processes. The Company has obtained clearance from the FDA for use of CoolPure
technology for preservation of liquid foods. In addition, the Company has
obtained clearance from the FDA of PureBright for food use and is applying for
similar approvals in Canada and Europe, as well as supporting customers in
obtaining clearance of PureBright for medical applications. The Company's EMI
filter capacitor has been approved for use in implantable defibrillators and
implantable pacemakers of certain medical device manufacturers. Delays in
receipt of or failure to receive anticipated approvals or clearances, the loss
of previously received approvals or clearances, limitations on intended use
imposed as a condition of such approvals or clearances, or failure to comply
with existing or future regulatory requirements would have a material adverse
effect on the Company's business, financial condition and results of operations.
 
     The testing, preparation of necessary marketing applications and processing
of those applications with the FDA is expensive and time consuming, can vary
based on the type of product and may take several years to complete. There is no
assurance that the FDA will act favorably or quickly in making such reviews, and
significant difficulties or costs may be encountered by the Company in its
efforts to obtain FDA approvals that could delay or preclude the Company from
marketing any products it may develop or furnish an advantage to competitors.
The FDA may also require post-marketing testing and surveillance to monitor the
effects of approved products or place conditions on any approvals that could
restrict the commercial applications of such products. Product approvals may be
withdrawn if compliance with regulatory standards is not maintained or if
problems occur following initial marketing. Noncompliance with applicable
requirements can result in, among other things, fines, injunctions, civil
penalties, recall or seizure of products, total or partial suspension of
production, failure of the government to grant pre-market clearance or
pre-market approval for products, withdrawal of marketing clearances or
approvals and criminal prosecution. See "Risk Factors -- Government Regulation."
 
     Because of the nature of its operations and the use of hazardous substances
in certain of its ongoing manufacturing and research and development activities,
the Company is subject to stringent federal, state and local laws, rules,
regulations and policies governing the use, generation, manufacturing, storage,
air emission, effluent discharge, handling and disposal of certain materials and
wastes. Although the Company believes it is in material compliance with all
applicable government and environmental laws, rules, regulations, and policies,
there can be no assurance that the Company's business, financial condition and
results of operations will not be materially adversely affected by current or
future environmental laws, rules, regulations and policies or by liability
arising out of any past or future releases or discharges of materials that could
be hazardous. See "Risk Factors -- Environmental Regulations."
 
SEGMENTS
 
     The Company's business segments are discussed in Note 10 of Notes to
Consolidated Financial Statements. The Company operates in four business
segments: Power Conversion Products (includes design, development and
manufacture of electrical components and subsystems, including products that
capitalize on pulsed power such as ultracapacitors, microbial purification
systems, high voltage capacitors and other electrical components and EMI filter
capacitors); Industrial Computers and Subsystems (includes design and
manufacture of standard, custom and semi-custom industrial computer modules,
platforms and fully-integrated systems primarily for OEMs), Technology Programs
and Systems (includes research and development, programs in pulsed power, pulsed
power systems design and construction, weapons effects simulation and
computer-based analytic services, primarily for the Department of Defense) and
Information Products and Services (includes design, development and integration
of software products and services including job cost accounting and management
information systems and other software products including applications for the
Internet, as well as wide-area and local-area network and software integration
services).
 
                                       44
<PAGE>   45
 
     The Company's operating subsidiaries are Maxwell Energy Products, Inc.
(Power Conversion Products), PurePulse Technologies, Inc. (Power Conversion
Products), I-Bus, Inc. (Industrial Computers and Subsystems), Maxwell Federal
Division, Inc. (Technology Programs and Systems), Maxwell Information Systems,
Inc. (Information Products and Services) and Maxwell Business Systems, Inc.
(Information Products and Services). See "Management's Discussion and Analysis
of Financial Condition and Results of Operations."
 
FACILITIES
 
     The Company owns a 45,600 square foot office and laboratory building, a
22,000 square foot manufacturing facility and a 35,000 square foot engineering
and administrative support facility situated on approximately 8.9 acres of land
located in San Diego, California. Approximately three-fourths of the 35,000
square foot building is leased by the Company to another company. The Company
also leases five other facilities in the San Diego area. The Company utilizes
its facilities in the following manner: corporate, sales and administrative
(53,000 sq. ft.); manufacturing, assembly and testing, research and development
laboratories and engineering (276,000 sq. ft.). The Company's leased facilities
in San Diego, California are leased for varying terms and some of them contain
options permitting the Company to extend the lease term. The Company leases or
has commitments to lease office space in Reston and Sterling, Virginia; Orlando,
Tallahassee and Sarasota, Florida; Albuquerque, New Mexico; and Mission Viejo,
California. In addition, the Company owns a 12,400 square foot manufacturing
facility on 2.6 acres of land located in Carson City, Nevada, utilizes on a
rent-free basis 22,000 square feet at Kirtland Air Force Base in Albuquerque,
New Mexico and operates a 500 acre test site in San Diego under a facilities
contract with the Defense Special Weapons Agency.
 
EMPLOYEES
 
     At July 31, 1997, the Company had 607 employees, including 43 employees
with Ph.D degrees and 79 others with post-graduate degrees. None of the
Company's employees is represented by a labor union. Maxwell considers its
relations with its employees to be good. See "Risk Factors -- Dependence on Key
Personnel."
 
                                       45
<PAGE>   46
 
                                   MANAGEMENT
 
     The directors and senior management of the Company are set forth in the
following table. The Company's Board of Directors, consisting of seven members,
is divided into three classes with one class standing for election each year for
a three-year term. The terms of directors in Class II expire at the 1997 annual
meeting of stockholders.
 
<TABLE>
<CAPTION>
          NAME               AGE                          POSITION
- -------------------------    ----     ------------------------------------------------
<S>                          <C>      <C>
Kenneth F. Potashner.....     39      Chairman, President, Chief Executive Officer,
                                      Chief Operating Officer and Director -- Class I
R. Wayne Clark...........     59      Vice President, and President of PurePulse
                                      Technologies, Inc.
Gary J. Davidson.........     41      Vice President -- Finance and Administration,
                                      Treasurer and Chief Financial Officer
Thomas L. Horgan.........     37      Vice President and Director -- Class I
Gregg L. McKee...........     54      Vice President, and President of Maxwell Energy
                                      Products, Inc.
Donald M. Roberts........     49      General Counsel and Secretary
Walter P. Robertson......     55      Vice President, and President of Maxwell Federal
                                      Division, Inc.
Terrence M. Siegrist.....     47      Vice President, and President of Maxwell
                                      Information Systems, Inc.
John D. Werderman........     50      Vice President, and President of I-Bus, Inc.
Lewis J. Colby, Jr. .....     63      Director -- Class II(1)(2)
Thomas B. Hayward........     73      Director -- Class III(1)(2)
Alan C. Kolb.............     68      Director -- Class III
Karl M. Samuelian........     65      Director -- Class III(1)(2)
Donn A. Starry...........     72      Director -- Class II(2)
</TABLE>
 
- ---------------
 
   
(1) Member of the Audit Committee.
    
(2) Member of the Compensation Committee.
 
     Mr. Potashner joined Maxwell in April 1996 as President, CEO, COO and
Director and was appointed Chairman in April 1997. From 1994 to April 1996, he
served as Executive Vice President, Operations, of Conner Peripherals. From 1991
through 1994 he was Vice President, Product Engineering, for Quantum
Corporation.
 
   
     Mr. Clark was appointed Vice President in January 1997. Mr. Clark has been
President of PurePulse Technologies, Inc., a majority-owned subsidiary of the
Company, since its formation in 1988. Prior to becoming President of PurePulse
Mr. Clark held various executive positions with the Company. He joined the
Company in 1973.
    
 
     Mr. Davidson served as Corporate Controller of the Company from May 1986
until his appointment as Vice President -- Finance, Treasurer and Chief
Financial Officer in March 1994. Mr. Davidson assumed the duties of Vice
President -- Administration in March 1995. Prior to joining Maxwell in 1986, Mr.
Davidson was a Senior Manager with Ernst & Young.
 
   
     Mr. Horgan joined the Company in June 1996 as Vice President, Business
Development. From 1995 until joining Maxwell, he was Vice President, Customer
Service, for Conner Peripherals and from 1993 to 1995 served as Director,
Customer Service for Quantum Corporation. From 1991 to 1993, Mr. Horgan served
as European Information Security Center Manager for Digital Equipment
Corporation.
    
 
     Mr. McKee joined the Company in September 1996 as Vice President and
President of Maxwell Energy Products, Inc. From 1990 until joining Maxwell he
served Quantum Corporation in various capacities. From January 1995 until
joining Maxwell he was President, Quantum Malaysia. From February 1993 to
 
                                       46
<PAGE>   47
 
December 1995, he served as Corporate Director of Malaysian Operations. From
1990 to January 1993 he was Director of the Customer Service Group.
 
     Mr. Roberts joined the Company as General Counsel in April 1994, and was
appointed Secretary in June 1996. For more than five years prior thereto, Mr.
Roberts was a shareholder of the law firm of Parker, Milliken, Clark, O'Hara &
Samuelian, a Professional Corporation, and a partner of the predecessor law
partnership, and in that capacity had served as an outside legal advisor to the
Company for more than ten years.
 
     Mr. Robertson joined the Company in August 1996 as Vice President and
President of Maxwell Federal Division, Inc. From April 1995 until joining
Maxwell, he served BioSolutions Technologies, a start-up company, as President
and Chief Executive Officer. From May 1994 through November 1994, Mr. Robertson
was Transition Director for Martin Marietta. Prior to that, he served General
Dynamics as Vice President and General Manager, Space Magnetics from 1992
through 1994 and as Vice President, Aircraft Production from 1991 through 1992.
 
     Mr. Siegrist joined the Company in March 1997, and was named President of
Maxwell Information Systems, Inc. in May 1997. From 1990 through 1993, and again
from 1994 until September 1996, Mr. Siegrist held management positions with
Boole & Babbage, Inc., most recently as Director, International Business
Operations. From 1993 to 1994, Mr. Siegrist was Director of Marketing for
Interphase Corporation. From 1979 until joining Boole & Babbage in 1990, Mr.
Siegrist served as Vice President of Sales and Marketing with Lemcom Systems,
Inc.
 
   
     Mr. Werderman was appointed President of I-Bus, Inc. in July 1997.
Previously, Mr. Werderman served as Chief Operating Officer of Maxwell Federal
Division, Inc. Prior to joining Maxwell in October 1996, Mr. Werderman worked
for M/A.COM, Inc. for over 15 years, most recently as President and General
Manager of their Baltimore, Maryland operation, M/A.COM Government Products,
Inc.
    
 
     Dr. Colby has been a director of the Company since December 1983. He was
Senior Vice President -- Technology of Allied-Signal, Inc. from 1985 until his
retirement on January 1, 1989, and held the same position with Allied
Corporation from 1981 to 1985.
 
     Admiral Hayward (U.S. Navy, Ret.) is President of Thomas B. Hayward
Associates, Inc., an executive consulting firm. Admiral Hayward served as the
Chief of Naval Operations of the United States Navy from 1978 until his
retirement from active service with the Navy in July 1982. He was appointed a
director of the Company in October 1987.
 
     Dr. Kolb has been a director of the Company since 1970. He also served as a
director from July 1965 to October 1967. From 1970 to 1996, Dr. Kolb served as
Chief Executive Officer of the Company. He was President of the Company from
1970 until 1980 and again from 1992 until 1996. From 1980 to 1995, Dr. Kolb
served as Chairman of the Board. Dr. Kolb stepped down from his positions as
President and Chief Executive Officer in April 1996, and continues with the
Company as a consultant.
 
     Mr. Samuelian has been a director of the Company since 1967 and served as
Secretary from that time until June 1996. From 1978 to June 1980, he also held
the office of Chairman of the Board of the Company. For more than five years,
Mr. Samuelian has been a shareholder in the law firm of Parker, Milliken, Clark,
O'Hara & Samuelian, A Professional Corporation, and a partner in the predecessor
law partnership. The Company retained the firm of Parker, Milliken, Clark,
O'Hara & Samuelian, a Professional Corporation to provide legal services during
fiscal 1997 and said firm has been retained in fiscal year 1998.
 
     General Starry (U.S. Army, Ret.) has been a director of the Company since
1988, and served as Chairman of the Board from October 1995 until April 1997.
General Starry retired from the Army in 1983 and joined Ford Aerospace
Corporation. He retired as Executive Vice President of Ford Aerospace
Corporation in 1990 and thereafter has served as consultant and advisor to
industry and government in the United States and several foreign countries.
 
                                       47
<PAGE>   48
 
EXECUTIVE COMPENSATION
 
     The following table sets forth certain summary information concerning the
compensation earned by the Company's Chief Executive Officer and its four other
most highly compensated executive officers (the "Named Executive Officers")
whose total salary and bonus for fiscal 1997 exceeded $100,000, for services
rendered to the Company and its subsidiaries in all capacities during that
fiscal year. No executive who would otherwise have been includable in such table
on the basis of salary and bonus earned for fiscal 1997 has resigned or
otherwise terminated employment during fiscal 1997.
 
                           SUMMARY COMPENSATION TABLE
 
<TABLE>
<CAPTION>
                                                                         LONG-TERM COMPENSATION
                                    ANNUAL COMPENSATION(1)       ---------------------------------------
                                ------------------------------     RESTRICTED     STOCK OPTION GRANTS(4)      ALL OTHER
   NAME AND POSITION     YEAR    SALARY     BONUS     OTHER(2)   STOCK AWARD(3)      (NO. OF SHARES)       COMPENSATION(5)
- -----------------------  ----   --------   --------   --------   --------------   ----------------------   ---------------
<S>                      <C>    <C>        <C>        <C>        <C>              <C>                      <C>
Kenneth F. Potashner
  (6)                    1997   $400,004   $400,000    $2,850       $190,000               50,000             $ 361,031
  Chairman               1996     93,847    100,000       -0-        645,105              177,960                44,000
  Chief Executive
    Officer, President,
    Chief Operating
    Officer, Director
Thomas L. Horgan (6)     1997    180,083     81,630       -0-            -0-                9,000                19,254
  Vice President,        1996     19,615        -0-       -0-            -0-               60,000                   -0-
  Director
Gregg L. McKee. (6)      1997    167,990     82,617       -0-            -0-               10,000                49,863
  Vice President         1996        -0-        -0-       -0-            -0-               60,000                   -0-
Walter P. Robertson (6)  1997    165,713     69,228       -0-            -0-               69,000                   -0-
  Vice President
Donald M. Roberts        1997    158,111     78,606     4,671            -0-                8,000                   -0-
  General Counsel &      1996    150,010        -0-       346            -0-               10,000                   -0-
    Secretary            1995    150,010        -0-       -0-            -0-                  -0-                   -0-
</TABLE>
 
- ---------------
 
(1) Amounts shown include cash compensation earned and received by executive
    officers as well as amounts earned but deferred at the election of those
    officers under the Company's Savings Plan.
 
(2) Amounts in this column consist of matching contributions made by the Company
    under its Savings Plan. They do not include the dollar value of certain
    perquisites and other personal benefits, securities or property the
    recipient received as personal benefits. Although such amounts cannot be
    determined precisely, the Company has concluded that the aggregate amount
    thereof does not exceed as to any of the named individuals the lesser of
    $50,000 and 10% of the total salary and bonus paid to such individual for
    fiscal 1997.
 
(3) Mr. Potashner was awarded 10,000 shares of restricted stock in fiscal 1997
    and 177,960 shares of restricted stock in fiscal 1996, which restricted
    shares vest 25% one year after grant and each month thereafter an additional
    1/48 of the total number of shares granted become vested. Mr. Potashner has
    full voting power and dividend rights with respect to all of the restricted
    stock. At July 31, 1997, the aggregate value of such restricted stock based
    on the closing price of the Company's Common Stock on that date was
    $4,370,000.
 
(4) Options shown in this column are options to purchase shares of Common Stock
    of Maxwell Technologies, Inc. granted under the Company's 1995 Stock Option
    Plan. Each individual in the table also received options in fiscal 1997 to
    purchase common stock in each of the Company's principal operating
    subsidiaries: Maxwell Energy Products, Inc., PurePulse Technologies, Inc.,
    I-Bus, Inc., Maxwell Federal Division, Inc., and Maxwell Information
    Systems, Inc. See the following table under the heading "Option Grants in
    Last Fiscal Year" for the specific number of shares included in option
    grants by each such subsidiary for each individual. In addition, Mr.
    Potashner received options in fiscal 1996 to purchase 150,000 shares of
    PurePulse Technologies, Inc. common stock.
 
(5) Represents amounts paid to Mr. Potashner in fiscal 1996 for consulting
    activities and in fiscal 1997 for relocation expenses including certain
    carrying and sale-related costs for his former residence, and tax offset
    payments. Represents amounts paid to Mr. Horgan and Mr. McKee in fiscal 1997
    as reimbursement of relocation expenses (including reimbursement of
    brokerage commissions on the sale of a residence).
 
(6) Mr. Potashner and Mr. Horgan were hired as executive officers in fiscal
    1996. Mr. McKee and Mr. Robertson were hired as executive officers in fiscal
    1997.
 
                                       48
<PAGE>   49
 
OPTION GRANTS IN LAST FISCAL YEAR
 
     The following table shows information on grants of stock options pursuant
to the Company's 1995 Stock Option Plan, the 1994 Stock Option Plan of the
Company's subsidiary, PurePulse Technologies, Inc. and the 1996 Stock Option
Plans of the Company's other principal operating subsidiaries, Maxwell Energy
Products, Inc., I-Bus, Inc., Maxwell Federal Division, Inc. and Maxwell
Information Systems, Inc., to the Named Executive Officers. Pursuant to
Securities and Exchange Commission rules, the table also shows the value of the
options at the end of the five and ten year option terms if the stock price were
to appreciate annually by 5% and 10%, respectively. These assumed values may not
reflect actual value at the times indicated.
 
   
<TABLE>
<CAPTION>
                                                                                             POTENTIAL REALIZABLE
                                                                                               VALUE AT ASSUMED
                                                                                                ANNUAL RATES OF
                                                PERCENTAGE OF                                     STOCK PRICE
                                                TOTAL OPTIONS                                  APPRECIATION FOR
                                                 GRANTED TO      EXERCISE                         OPTION TERM
                                    OPTIONS     EMPLOYEES IN       PRICE      EXPIRATION   -------------------------
         NAME AND ENTITY           GRANTED(1)    FY 1997(2)     (PER SHARE)      DATE         5%             10%
- ---------------------------------  ----------   -------------   -----------   ----------   --------       ----------
<S>                                <C>          <C>             <C>           <C>          <C>            <C>
Kenneth F. Potashner
  Company........................     50,000        13.38%        $ 19.50       7/22/07    $613,170       $1,553,900
  Energy Products................    100,000        13.65            1.16       11/7/06      72,950          184,870
  PurePulse......................        -0-          -0-             -0-            --         -0-              -0-
  I-Bus..........................    100,000        15.17            1.15       11/7/06      72,320          183,280
  Federal........................    100,000        14.15            1.45       11/7/06      91,190          231,090
  Information Systems............    100,000        13.34             .26       11/7/06      16,350           41,440
Thomas L. Horgan
  Company........................      9,000         2.41%        $ 19.50       7/22/02    $ 48,490       $  107,140
  Energy Products................     37,500         5.12            1.16       11/7/06      27,360           69,330
  PurePulse......................     33,750        10.15             .65        8/7/06      13,800           34,960
  I-Bus..........................     37,500         5.69            1.15       11/7/06      27,120           68,730
  Federal........................     37,500         5.31            1.45       11/7/06      34,200           86,660
  Information Systems............     37,500         5.00             .26       11/7/06       6,130           15,540
Gregg L. McKee
  Company........................     10,000         2.68%        $ 19.50       7/22/02    $ 53,870       $  119,050
  Energy Products................    125,000        17.06            1.16       11/7/06      91,190          231,090
  PurePulse......................     22,500         6.77             .65        8/7/06       9,200           23,310
  I-Bus..........................     25,000         3.79            1.15       11/7/06      18,080           45,820
  Federal........................     25,000         3.54            1.45       11/7/06      22,800           57,770
  Information Systems............     25,000         3.33             .26       11/7/06       4,090           10,360
Walter P. Robertson
  Company........................      9,000         2.41%        $ 19.50       7/22/02    $ 48,490       $  107,140
                                      60,000        16.06            6.88        8/1/01     114,050          252,020
  Energy Products................     25,000         3.41            1.16       11/7/06      18,240           46,220
  PurePulse......................     22,500         6.77             .65        8/7/06       9,200           23,310
  I-Bus..........................     25,000         3.79            1.15       11/7/06      18,080           45,820
  Federal........................    100,000        14.15            1.45       11/7/06      91,190          231,090
  Information Systems............     25,000         3.33             .26       11/7/06       4,090           10,360
Donald M. Roberts
  Company........................      8,000         2.14%        $ 19.50       7/22/02    $ 43,100       $   95,240
  Energy Products................     37,500         5.12            1.16       11/7/06      27,360           69,330
  PurePulse......................     33,750        10.15             .65        8/7/06      13,800           34,960
  I-Bus..........................     37,500         5.69            1.15       11/7/06      27,120           68,730
  Federal........................     37,500         5.31            1.45       11/7/06      34,200           86,660
  Information Systems............     37,500         5.00             .26       11/7/06       6,130           15,540
</TABLE>
    
 
- ---------------
 
   
(1) These options are either incentive stock options or non-qualified stock
    options and were granted at a purchase price equal to the fair market value
    of the underlying common stock at the date of grant. The fair market value
    of the Company's Common Stock was based on the trading price of such stock
    on the date of grant, and the fair market value of the common stock of the
    subsidiaries was based on independent outside appraisals. The term of all
    options covering shares of common stock of the Company's subsidiaries is ten
    years. The term of options covering the Company's Common Stock is five
    years, with the exception of Mr. Potashner's options covering Company Common
    Stock which have ten year terms. The increments in which the options are
    exercisable are determined by the committees which administer the plans.
    
 
   
(2) Total options for the Company include options covering 12,000 shares of
    Company Common Stock granted to directors of the Company under the Company's
    Director Stock Option Plan.
    
 
                                       49
<PAGE>   50
 
     The stock option plans of the Company's five principal operating
subsidiaries permit options to be granted for an aggregate number of shares of
common stock amounting to approximately 13% of the total outstanding shares of
such stock on a fully-diluted basis (17.3% at one subsidiary). At August 31,
1997, the number of shares of common stock subject to outstanding options under
the Company's subsidiary stock option plans was, in the case of each such
subsidiary, 10.3% to 13.6% on a fully-diluted basis.
 
FISCAL YEAR END OPTION VALUES
 
   
     Shown below is information on each Named Executive Officer with respect to
(i) the value of stock options exercised by such person in fiscal 1997, measured
in terms of the closing price of the Company's Common Stock on the date of
exercise, and (ii) the value of unexercised options to purchase the Company's
Common Stock held by such person granted in fiscal 1997 and prior years under
the Company's 1995 or 1985 Stock Option Plans, measured in terms of the closing
price of the Company's Common Stock on July 31, 1997.
    
 
<TABLE>
<CAPTION>
                                                                NUMBER OF UNEXERCISED           VALUE OF UNEXERCISED
                                                                   OPTIONS HELD AT             IN-THE-MONEY OPTIONS AT
                         SHARES ACQUIRED                          JULY 31, 1997(1)                JULY 31, 1997(1)
                           ON EXERCISE          VALUE       -----------------------------   -----------------------------
         NAME           (NUMBER OF SHARES)   REALIZED ($)   EXERCISABLE     UNEXERCISABLE   EXERCISABLE     UNEXERCISABLE
- ----------------------  ------------------   ------------   -----------     -------------   -----------     -------------
<S>                     <C>                  <C>            <C>             <C>             <C>             <C>
Kenneth F.
  Potashner...........        34,000           $563,040        25,320          168,640       $ 498,424       $ 2,522,928
Thomas L. Horgan......           -0-                -0-        18,000           51,000         328,500           800,250
Gregg L. McKee........         5,000             63,750        13,000           52,000         208,000           709,500
Walter P. Robertson...           -0-                -0-           -0-           69,000             -0-         1,015,950
Donald M. Roberts.....           -0-                -0-        11,000           17,000         210,750           196,750
</TABLE>
 
- ---------------
 
   
(1) Does not include options held by the Named Executive Officers to purchase
    shares of common stock in the Company's five principal operating
    subsidiaries under the stock option plans of such subsidiaries. All options
    held by these individuals under such stock option plans were granted in
    fiscal 1997 and are shown in the preceding table, except for options to
    purchase 150,000 shares of common stock of the Company's PurePulse
    Technologies, Inc. subsidiary granted to Mr. Potashner in fiscal 1996 of
    which options for 37,500 shares were exercisable within 60 days of July 31,
    1997. No public market exists for the common stock of any of the Company's
    subsidiaries. For purposes of the above table, no value has been attributed
    to the subsidiary stock options.
    
 
EMPLOYMENT CONTRACTS, TERMINATION OF EMPLOYMENT AND CHANGE-IN-CONTROL
ARRANGEMENTS
 
     Employment Agreement. In March, 1996, the Company entered into an
Employment Contract ("Contract") with Kenneth F. Potashner pursuant to which Mr.
Potashner became the President and Chief Executive Officer of the Company
effective April 26, 1996. The Contract, as amended, is for a term ending July
31, 2000, and requires Mr. Potashner to perform the duties associated with the
office of chief executive of the Company plus such other duties or positions as
the Board of Directors may require. Mr. Potashner is currently also performing
the duties of the Company's chairman, president and chief operating officer. The
Contract provides for a base salary for fiscal 1998 of $450,000 per year,
reviewed annually, with an annual bonus opportunity of up to 200% of base
salary, with a target bonus of 100% of base salary, to be determined by the
Board of Directors. Mr. Potashner has received a total of 187,960 shares of
restricted stock under the Contract and options under the Company's 1995 Stock
Option Plan for a total of 227,960 shares. Both the restricted shares and the
options are subject to four-year vesting schedules.
 
   
     Under the Contract, Mr. Potashner will be immediately vested in the
restricted shares and stock options, shall receive a payment equal to two years
of his initial base salary plus his initial term target bonus and shall continue
for one year to receive benefits identical to those being received, in the event
that a "change of control" occurs and either his compensation or
responsibilities are reduced or the Company's headquarters are moved more than
30 miles. A "change of control" is defined as the acquisition by a person or
group of a majority of the Company's stock by direct purchase or through a
merger, the liquidation or sale of substantially all of the assets of the
Company or a change in a majority of the members of the Board of
    
 
                                       50
<PAGE>   51
 
Directors other than through membership changes determined by the Board itself.
If Mr. Potashner is terminated without cause during the term of the Contract, he
will be paid the base salary and target bonus remaining to be paid for the
balance of the stated term of the Contract (but not less than one full year of
such salary and bonus) and the restricted shares shall become free of any
restrictions and stock options shall become fully vested. In the event Mr.
Potashner voluntarily resigns or is terminated for cause, he shall be paid only
such salary and accrued vacation pay as is then due to him and no acceleration
of vesting or lifting of restrictions shall occur with respect to the restricted
shares or stock options. Upon completion of this offering,
pursuant to the Contract, the Board will consider the grant of additional
options to Mr. Potashner.
 
COMPENSATION OF DIRECTORS
 
     Each director of the Company (other than Mr. Potashner and Mr. Horgan who
receive no compensation other than that received as officers of the Company)
receives compensation of $2,268 per quarter and $810 per Board and Committee
meeting attended ($405 per Board or Committee telephonic meeting in which such
director participates).
 
     Alan C. Kolb, a director and formerly the Chief Executive Officer of the
Company, is performing consulting services for the Company. Under the consulting
agreement, Dr. Kolb has agreed to consult with the Company for a substantial
portion of his time and is paid $10,000 per month, with a bonus opportunity of
up to 100% of such monthly fee at the discretion of the Company's Chief
Executive Officer. The consulting agreement has a three-year term ending July
31, 1999, and its scope and the fees provided therein are subject to periodic
reviews by the Chief Executive Officer. During fiscal 1997, Dr. Kolb received a
total of $165,000 in consulting fees, including bonuses.
 
     The Company maintains the Maxwell Technologies, Inc. Director Stock Option
Plan (the "Director Option Plan") which authorizes the granting of ten-year
options to purchase an aggregate of 264,600 shares of the Company's Common Stock
to non-employee directors of the Company during the ten-year term of the
Director Option Plan which expires in 1999. Under the Director Option Plan, each
eligible director automatically receives options to purchase 6,000 shares of
Company Common Stock on the first business day following such director's initial
Annual Shareholders' Meeting of the Company, and options to purchase 2,000
shares following subsequent Annual Shareholders' Meetings. The option price per
share is the fair market value based on the public trading price of such shares
on the date of grant. Options granted to directors vest in full on the first
anniversary of the date of grant.
 
     The Company maintains the Maxwell Technologies, Inc. 1994 Director Stock
Purchase Plan (the "Director Purchase Plan"), under which directors, other than
those who are full-time employees of the Company, have the opportunity to
purchase directly from the Company shares of Common Stock at 100% of the public
trading price of the shares. An aggregate of 100,000 shares have been authorized
for purchase by directors under the plan. The Director Purchase Plan authorizes
purchases by eligible directors from and after January 1, 1995, the effective
date of the plan, until the earlier of ten years thereafter or the issuance of
all shares authorized for purchase.
 
                                       51
<PAGE>   52
 
                       PRINCIPAL AND SELLING STOCKHOLDERS
 
     The following table sets forth certain information with respect to the
beneficial ownership of the Company's Common Stock as of July 31, 1997, and as
adjusted to reflect the sale of the shares offered by the Company and the
Selling Stockholders in this offering, by (i) each person (or group of
affiliated persons) known by the Company to beneficially own more than five
percent of the outstanding shares of Common Stock, (ii) each Selling
Stockholder, (iii) each of the Company's directors, (iv) each of the Named
Executive Officers and (v) all directors and executive officers of the Company
as a group. Unless otherwise indicated, the address for each stockholder is 9275
Sky Park Court, San Diego, CA 92123.
 
<TABLE>
<CAPTION>
                                                      SHARES
                                                  OF COMMON STOCK                SHARES OF COMMON
                                                   BENEFICIALLY                        STOCK
                                                       OWNED                       BENEFICIALLY
                                                     PRIOR TO        NUMBER OF      OWNED AFTER
                                                 OFFERING(1)(2)(3)    SHARES        OFFERING(2)
              NAME AND ADDRESS OF                -----------------     BEING     -----------------
               BENEFICIAL OWNER                  NUMBER    PERCENT    OFFERED    NUMBER    PERCENT
- -----------------------------------------------  -------   -------   ---------   -------   -------
<S>                                              <C>       <C>       <C>         <C>       <C>
The TCW Group, Inc.............................  424,576      6.9%         --    424,576     5.6%
  865 South Figueroa Street
  Los Angeles, California 90017
Dimensional Fund Advisors, Inc.(4).............  358,020      5.8          --    358,020     4.7
  1299 Ocean Avenue, 11th Floor
  Santa Monica, California 90401
Kenneth F. Potashner...........................  254,698      4.1      25,000    229,698     3.0
Gregg L. McKee.................................  13,000         *          --    13,000        *
Walter P. Robertson............................  18,100         *          --    18,100        *
Thomas L. Horgan...............................  20,200         *          --    20,200        *
Donald M. Roberts..............................  13,281         *          --    13,281        *
Lewis J. Colby, Jr.............................  33,830         *          --    33,830        *
Thomas B. Hayward..............................  19,334         *          --    19,334        *
Alan C. Kolb...................................  194,496      3.2      50,000    144,496     1.9
Karl M. Samuelian..............................  22,174         *          --    22,174        *
Donn A. Starry.................................  16,181         *          --    16,181        *
All directors and executive officers as a group
  (14 persons).................................  651,471     10.6      75,000    576,471     7.5
</TABLE>
 
- ---------------
 
 *  Less than one percent.
 
(1) Information with respect to beneficial ownership is based on information
    furnished to the Company by each shareholder included in the table or
    included in filings with the Securities and Exchange Commission. The Company
    understands that each individual person has sole voting and investment power
    for shares beneficially owned by him, subject to community property laws
    where applicable.
 
(2) Shares of Common Stock subject to options or warrants which are currently
    exercisable or exercisable within 60 days of July 31, 1997, are deemed
    outstanding for computing the percentage of the person holding such options
    or warrants but are not deemed outstanding for computing the percentage of
    any other person. Percentage of ownership is based on 6,142,911 shares of
    Common Stock outstanding on July 31, 1997 and 7,642,911 shares of Common
    Stock outstanding on such date on a pro forma basis after giving effect to
    this offering.
 
   
(3) Shares of Common Stock beneficially owned prior to the offering include
    options exercisable within 60 days of July 31, 1997 to purchase 32,735
    shares granted to Mr. Potashner, 13,000 shares granted to Mr. McKee, 18,000
    shares granted to Mr. Robertson, 18,000 shares granted to Mr. Horgan, 11,000
    shares granted to Mr. Roberts, 19,334 shares granted to Dr. Colby, 19,334
    shares granted to Adm. Hayward, 19,334 shares granted to Mr. Samuelian, and
    13,028 shares granted to Gen. Starry, respectively, and options to purchase
    203,315 shares granted to all directors and officers as a group.
    
 
(4) Dimensional Fund Advisors, Inc. ("Dimensional"), a registered investment
    advisor, is deemed to have beneficial ownership of 358,020 shares of the
    Company's Common Stock as of June 30, 1997, all of which shares are held in
    portfolios of DFA Investment Dimensions Group Inc., a registered open-end
 
                                       52
<PAGE>   53
 
investment company, or in a series of the DFA Investment Trust Company, a
Delaware Business Trust, or the DFA Group Trust and the DFA Participating Group
Trust, investment vehicles for qualified employee benefit plans, all of which
     Dimensional Fund Advisors, Inc. serves as investment manager. Dimensional
     disclaims beneficial ownership of all such shares. Dimensional has sole
     dispositive power over all of such 358,020 shares and sole voting power
     over 257,938 of such shares. Persons who are officers of Dimensional Fund
     Advisors, Inc. also serve as officers of DFA Investment Dimensions Group
     Inc. (the "Fund") and the DFA Investment Trust Company (the "Trust"), each
     an open-end management investment company registered under the Investment
     Company Act of 1940. In their capacity as officers of the Fund and the
     Trust, these persons vote 58,892 additional shares which are owned by the
     Fund and 41,190 shares which are owned by the Trust (both included in sole
     dispositive power above).
 
     Based on information obtained from FMR Corp., 82 Devonshire Street, Boston,
Massachusetts, the Company believes that FMR Corp., or persons or entities
controlling or controlled by FMR Corp., had acquired beneficial ownership of
more than 5% of the Company's Common Stock as of July 31, 1997. The Company is
unable to determine the number of shares held by FMR Corp. as of such date from
information currently available to the Company or its transfer agent.
 
                                       53
<PAGE>   54
 
                          DESCRIPTION OF CAPITAL STOCK
 
COMMON STOCK
 
     The Company's authorized capital stock consists of 20,000,000 shares of
Common Stock, $.10 par value. As of September 26, 1997, there were 6,163,151
shares of Common Stock outstanding, excluding shares issuable upon the exercise
of outstanding options to purchase an aggregate of 1,034,440 shares of Common
Stock held by employees, management and Directors. Holders of Common Stock are
entitled to one vote for each share held of record on all matters submitted to a
vote of stockholders. There is no cumulative voting for the election of
Directors. Holders of Common Stock are entitled to receive ratably such
dividends as may be declared by the Board of Directors out of funds legally
available therefor. See "Dividend Policy." In the event of a liquidation,
dissolution or winding up of the Company, holders of Common Stock are entitled
to share ratably in all assets remaining after payment to all creditors. Holders
of Common Stock have no preemptive rights and have no rights to convert their
Common Stock into any other securities. All of the outstanding shares of Common
Stock are, and the shares being offered hereby will upon issuance and sale be,
fully paid and nonassessable.
 
     The transfer agent and registrar for the Common Stock is ChaseMellon
Shareholder Services, L.L.C.
 
COMMON STOCK RIGHTS
 
     On June 20, 1989, the Board of Directors of Maxwell declared a dividend
distribution of one Right for each outstanding share of its common stock, par
value $.10 per share (the "Common Stock"), to stockholders of record at the
close of business on June 30, 1989. Each Right entitles the registered holder to
initially purchase from the Company one-half of a share of Common Stock at a
purchase price of $32.50 per one-half share (the "Purchase Price"), since
adjusted to $16.25 per one-half share. The description and terms of the Rights
are set forth in a rights agreement, as amended (the "Rights Agreement") between
the Company and ChaseMellon Shareholder Services, L.L.C., as Rights Agent.
 
     In general, the Rights become exercisable or transferable only upon the
occurrence of certain events related to changes in ownership of the Common
Stock. Once exercisable, each Right entitles its holder initially to purchase
from the Company one-half of a share of Common Stock at a purchase price of
$16.25 per one-half share. The Rights become exercisable upon the earlier of the
close of business on (i) the tenth day following public announcement that a
person or group of affiliated or associated persons (an "Acquiring Person") has
acquired, or generally obtained the right to acquire, beneficial ownership of
20% or more of the outstanding shares of Common Stock (the "Stock Acquisition
Date"), or (ii) the tenth business day following the commencement of a tender
offer or exchange offer that would result in a person or group beneficially
owning 20% or more of such outstanding shares of Common Stock. Upon the
occurrence of certain other events related to changes in the ownership of the
Common Stock, each holder of a Right would be entitled to purchase shares of the
Common Stock, or an acquiring corporation's common stock, having a market value
equal to four times the exercise value of the Right. However, Rights are not
exercisable following the occurrence of any of the events set forth above until
such time as the Rights are no longer redeemable by the Company as set forth
below.
 
     The Rights expire at the close of business on June 20, 1999, unless earlier
redeemed by the Company. At any time until the close of business on the tenth
business day following the Stock Acquisition Date, the Company may redeem the
Rights in whole, but not in part, at a price of $.01 per Right (payable in cash,
Common Stock or other consideration deemed appropriate by the Board of
Directors). After the redemption period has expired, the Company's right of
redemption may be reinstated if an Acquiring Person reduces his beneficial
ownership to 10% or less of the outstanding shares of Common Stock in a
transaction or series of transactions not involving the Company. Immediately
upon the action of the Board of Directors ordering redemption of the Rights, the
Rights will terminate and the only right of the holders of Rights will be to
receive the $.01 redemption price. The Rights, if exercised, will cause a
substantial dilution to the equity interest in Maxwell to a person's or group's
ownership interest in the Company's Common Stock that attempts
 
                                       54
<PAGE>   55
 
   
to acquire the Company on terms not approved by the Company's Board of
Directors. See "Risk Factors -- Anti-Takeover Provisions."
    
 
ADDITIONAL ANTI-TAKEOVER PROVISIONS
 
   
     The provisions of the Company's certificate of incorporation and bylaws
having possible "anti-takeover" effects are those that: (i) form a classified
Board of Directors with staggered terms of office, eliminate cumulative voting
and permit the removal of directors only for cause; (ii) impose supermajority
stockholder vote or disinterested director approval requirements in connection
with certain mergers, acquisitions and other business combinations, unless
specified minimum price and procedural requirements are satisfied in the
proposed transaction (a "fair price provision"); (iii) eliminate the right of
stockholders to call special stockholders' meetings and limit their right to
take action without a meeting by written consent and (iv) impose supermajority
stockholder vote or disinterested director approval requirements for amendments
to a number of provisions in the Company's charter documents, including the
provisions described in clauses (i) through (iii) above.
    
 
     In general, the fair price provisions may have the effect of requiring
payment in cash for shares of Common Stock by an acquiror having accumulated 10%
or more of the Common Stock at a price no less than the highest market price of
the Common Stock within a recent date. Such a 10% or more stockholder must also
meet certain procedural requirements intended to prevent accumulations of
additional stock below the fair price.
 
DELAWARE LAW
 
     The Company is subject to the provisions of Section 203 of the Delaware
General Corporation Law, an anti-takeover law. In general, Section 203 prohibits
a publicly held Delaware corporation from engaging in a "business combination"
with an "interested stockholder" for a period of three years after the date of
the transaction in which the person became an interested stockholder, unless
either (i) prior to the date at which the person becomes an interested
stockholder, the Board of Directors approves such transaction or business
combination; (ii) the stockholder acquires more than 85% of the outstanding
voting stock of the corporation (excluding shares held by directors who are
officers or held in certain employee stock plans) upon consummation of such
transaction or (iii) the business combination is approved by the Board of
Directors and by two-thirds of the outstanding voting stock of the corporation
(excluding shares held by the interested stockholder) at a meeting of
stockholders (and not by written consent). A "business combination" includes a
merger, asset sale or other transaction resulting in a financial benefit to such
interested stockholder. An "interested stockholder" is a person who, together
with affiliates and associates, owns (or within three years prior, did own) 15%
or more of the corporation's voting stock.
 
                                       55
<PAGE>   56
 
                                  UNDERWRITING
 
     Subject to the terms and conditions set forth in the Underwriting
Agreement, the underwriters named below (the "Underwriters"), through their
representatives, Cowen & Company and Hambrecht & Quist LLC, have severally
agreed to purchase from the Company the following respective number of Shares at
the public offering price less the underwriting discounts and commissions set
forth on the cover page of this Prospectus:
 
   
<TABLE>
<CAPTION>
                                    NAME                                   NUMBER OF SHARES
    ---------------------------------------------------------------------  ----------------
    <S>                                                                    <C>
    Cowen & Company......................................................        645,000
    Hambrecht & Quist LLC................................................        430,000
    BancAmerica Robertson Stephens.......................................         50,000
    Bear, Stearns & Co. Inc. ............................................         50,000
    Lehman Brothers Inc. ................................................         50,000
    Adams, Harkness & Hill, Inc. ........................................         25,000
    Crowell, Weedon & Co. ...............................................         25,000
    Friedman, Billings, Ramsey & Co., Inc. ..............................         25,000
    Gaines, Berland Inc. ................................................         25,000
    Gerard Klauer Mattison & Co., LLC....................................         25,000
    Interstate/Johnson Lane Corporation..................................         25,000
    C.L. King & Associates, Inc. ........................................         25,000
    McDonald & Company Securities, Inc. .................................         25,000
    Rauscher Pierce Refsnes, Inc. .......................................         25,000
    Raymond James & Associates, Inc. ....................................         25,000
    Rodman & Renshaw, Inc. ..............................................         25,000
    Sutro & Co. Incorporated.............................................         25,000
    Tucker Anthony Incorporated..........................................         25,000
    Van Kasper & Company.................................................         25,000
                                                                               ---------
              Total......................................................      1,575,000
                                                                               =========
</TABLE>
    
 
     The Underwriting Agreement provides that the obligations of the
Underwriters are subject to certain conditions precedent, including the absence
of any material adverse change in the Company's business and the receipt of
certain certificates, opinions and letters from the Company, the Selling
Stockholders and their counsel and the Company's independent auditors. The
nature of the Underwriters' obligation is such that they are committed to
purchase all shares of Common Stock offered if any of such shares are purchased.
 
   
     The Underwriters propose to offer the Shares of Common Stock directly to
the public at the offering price set forth on the cover page of this Prospectus
and to certain dealers at such price less a concession not in excess of $1.01
per share. The Underwriters may allow and such dealers may re-allow a concession
not in excess of $.10 per share to certain other dealers. The Underwriters have
informed the Company that they do not intend to confirm sales to any accounts
over which they exercise discretionary authority. After the initial public
offering of the Shares, the offering price and other selling terms may from time
to time be varied by the Underwriters.
    
 
     The Company has granted to the Underwriters an option, exercisable no later
than 30 days after the Effective Date, to purchase up to 236,250 additional
shares of Common Stock at the offering price, less the underwriting discounts
and commissions, set forth on the cover page of this Prospectus, to cover over-
allotments, if any. If the Underwriters exercise such over-allotment option, the
Underwriters have severally agreed, subject to certain conditions, to purchase
approximately the same percentage thereof that the number of shares of Common
Stock to be purchased by each of them shown in the foregoing table bears to the
total number of Shares of Common Stock offered hereby. The Underwriters may
exercise such option only to cover over-allotments made in connection with the
sale of Shares of Common Stock offered hereby.
 
                                       56
<PAGE>   57
 
     The Company's senior officers, directors and certain other persons have
agreed that they will not, without the prior written consent of Cowen & Company,
offer, sell or otherwise dispose of any shares of Common Stock, options, rights
or warrants to acquire shares of Common Stock, or securities exchangeable for or
convertible into shares of Common Stock owned by them during the 90-day period
commencing on the Effective Date, subject to the exception that certain
individuals may sell up to an aggregate of 37,000 shares. In addition, the
Company has agreed that it will not, without the prior written consent of Cowen
& Company, offer, sell or otherwise dispose of any shares of Common Stock or
options, rights or warrants to acquire shares of Common Stock, or securities
exchangeable for or convertible into shares of Common Stock during such 90-day
period except in certain limited circumstances.
 
     The Company and the Selling Stockholders have agreed to indemnify the
Underwriters against certain liabilities, including liabilities under the
Securities Act and to contribute to payments the Underwriters may be required to
make in respect thereof.
 
     In connection with this offering, the Underwriters and certain selling
group members or their respective affiliates may engage in passive market making
transactions in the Common Stock on the Nasdaq National Market immediately prior
to the commencement of sales in this offering in accordance with Regulation M
under the Exchange Act. Passive market making consists of displaying bids on the
Nasdaq National Market limited by the bid prices of independent market makers
and purchases limited by such prices and effected in response to order flow. Net
purchases by a passive market maker on each day are limited to a specified
percentage of the passive market maker's average daily trading volume in the
Common Stock during a specified prior period and must be discontinued when such
limit is reached. Passive market making may stabilize the market price of the
Common Stock at a level above that which might otherwise prevail and, if
commenced, may be discontinued at any time.
 
     In order to facilitate this offering, the Underwriters may engage in
transactions that stabilize, maintain or otherwise affect the price of the
Common Stock. Specifically, the Underwriters may overallot in connection with
this offering, creating a short position in the Common Stock for their own
account. In addition, to cover over-allotments or to stabilize the price of the
Common Stock, the Underwriters may bid for, and purchase shares of the Common
Stock in the open market. The Underwriters may also reclaim selling concessions
allowed to an underwriter or a dealer for distributing the Common Stock in this
offering, if the Underwriters repurchase previously distributed Common Stock in
transactions to cover their short positions, in stabilization transactions or
otherwise. Finally, the Underwriters may bid for, and purchase shares of the
Common Stock in market making transactions and impose penalty bids. These
activities may stabilize or maintain the market price of the Common Stock above
market levels that may otherwise prevail. The Underwriters are not required to
engage in these activities, and may end any of these activities at any time.
 
     Each of the Company and the Representatives has represented and agreed that
(a) it has not offered or sold, and prior to the date six months after the date
of this Prospectus will not offer or sell any shares of Common Stock to persons
in the United Kingdom except to persons whose ordinary activities involve them
in acquiring, holding, managing or disposing of investments (as principal or
agent) for the purchase of their businesses or otherwise in circumstances which
do not constitute an offer to the public in the United Kingdom for the purposes
of the Public Offers of Securities Regulations 1995, (b) it has complied and
will comply with all applicable provisions of the Financial Services Act 1986
with respect to any thing done by it in relation to the shares of Common Stock
and (c) it has only issued or passed on and will only issue or pass on in the
United Kingdom any document received by it in connection with the issue or sale
of the shares of Common Stock to a person who is of a kind described in Article
11(3) of the Financial Services Act of 1986 (Investments: Advertisements)
(Exemptions) Order 1996 or is a person to whom the document may otherwise
lawfully be issued or passed on.
 
                                       57
<PAGE>   58
 
                                 LEGAL MATTERS
 
     Certain legal matters with respect to the validity of the Common Stock
offered hereby will be passed upon for the Company by Riordan & McKinzie, a
Professional Corporation, Los Angeles, California. A principal of Riordan &
McKinzie owns 6,625 shares of Common Stock. Brobeck, Phleger & Harrison LLP,
Newport Beach, California, is acting as counsel for the Underwriters in
connection with certain legal matters relating to the sale of the Common Stock
offered hereby.
 
                                    EXPERTS
 
     The consolidated financial statements of the Company at July 31, 1997 and
1996 and for each of the three years in the period ended July 31, 1997,
appearing in this Prospectus and Registration Statement have been audited by
Ernst & Young LLP, independent auditors, as set forth in their report thereon
appearing elsewhere herein, and are included in reliance upon such report given
upon the authority of such firm as experts in accounting and auditing.
 
                             ADDITIONAL INFORMATION
 
     The Company has filed a Registration Statement on Form S-3 under the
Securities Act with the Securities and Exchange Commission (the "Commission")
with respect to the shares offered by this Prospectus. This Prospectus does not
contain all of the information set forth in the Registration Statement and the
exhibits and schedules thereto. For further information with respect to the
Company and the Common Stock, reference is made to the Registration Statement
and the exhibits and schedules thereto. Statements contained herein concerning
the provisions of any documents are not necessarily complete and, in each
instance, reference is made to the copy of such documents filed as an exhibit to
the Registration Statement, and each such statement shall be deemed qualified in
its entirety by such reference.
 
     The Company is subject to the informational requirements of the Exchange
Act and, in accordance therewith, files reports and other information with the
Commission. A copy of the reports and other information filed by the Company in
accordance with the Exchange Act may be inspected without charge at the offices
of the Commission at Room 1024, 450 Fifth Street, N.W., Washington, D.C. 20549,
and will also be available for inspection and copying at the regional offices of
the Commission located at Seven World Trade Center, Suite 1300, New York, New
York 10048 and at Room 3190, Northwest Atrium Center, 500 West Madison Street,
Chicago, Illinois 60661-2511. Copies of such material may also be obtained from
the Public Reference Section of the Commission, 450 Fifth Street, N.W.,
Washington, D.C. 20549, at prescribed rates. The Commission maintains a World
Wide Web site that contains reports, proxy and information statements and other
information regarding the Company at http://www.sec.gov. Such reports, proxy
statements and other information concerning the Company are also available for
inspection at the offices of the Nasdaq National Market, Reports Section, 1735 K
Street, Washington, D.C. 20006.
 
                                       58
<PAGE>   59
 
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
 
     The following documents which have been filed with the Commission by the
Company are hereby incorporated by reference in this Prospectus.
 
     (1) Annual Report on Form 10-K for the fiscal year ended July 31, 1997.
 
     (2) Description of the Company's Rights contained in the Registration
         Statement on Form 8-A dated June 30, 1989.
 
   
     (3) Current Report on Form 8-K dated November 10, 1997.
    
 
     All documents filed by the Company pursuant to Sections 13(a), 13(c), 14
and 15(d) of the Exchange Act, subsequent to the date of this Prospectus and
prior to the termination of the offerings made hereby, shall be deemed
incorporated by reference herein and to be a part hereof from the date of filing
such reports and documents. Any statement contained in a document incorporated
or deemed to be incorporated by reference herein shall be deemed to be modified
or superseded for purposes of this Prospectus to the extent that a statement
contained herein or in any other subsequently filed document which also is or is
deemed to be incorporated by reference herein modifies or supersedes such
statement. Any such statement so modified or superseded shall not be deemed,
except as so modified or superseded, to constitute a part of this Prospectus.
 
     Copies of all documents which are incorporated herein by reference (not
including the exhibits to such information, unless such exhibits are
specifically incorporated by reference in such information) will be provided
without charge to each person, including any beneficial owner, to whom this
Prospectus is delivered, upon written or oral request. Copies of this
Prospectus, as amended or supplemented from time-to-time, and any other
documents (or parts of documents) that constitute part of this Prospectus under
Section 10(a) of the Securities Act will also be provided without charge to each
such person, upon written or oral request. Requests should be directed to
Maxwell Technologies, Inc., 9275 Sky Park Court, San Diego, California 92123,
Attention: Corporate Secretary; telephone number (619) 279-5100.
 
                                       59
<PAGE>   60
 
                  MAXWELL TECHNOLOGIES, INC. AND SUBSIDIARIES
 
                   INDEX TO CONSOLIDATED FINANCIAL STATEMENTS
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                        ----
<S>                                                                                     <C>
Report of Ernst & Young LLP, Independent Auditors.....................................   F-2
Consolidated Balance Sheets at July 31, 1996 and 1997.................................   F-3
Consolidated Statement of Operations for the Years Ended July 31, 1995, 1996 and
  1997................................................................................   F-4
Consolidated Statement of Stockholders' Equity for the Three Years Ended July 31,
  1997................................................................................   F-5
Consolidated Statement of Cash Flows for the Years Ended July 31, 1995, 1996 and
  1997................................................................................   F-6
Notes to Consolidated Financial Statements............................................   F-7
</TABLE>
 
                                       F-1
<PAGE>   61
 
               REPORT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS
 
Board of Directors and Stockholders
Maxwell Technologies, Inc.
 
     We have audited the accompanying consolidated balance sheets of Maxwell
Technologies, Inc., and subsidiaries as of July 31, 1996 and 1997, and the
related consolidated statements of operations, stockholders' equity and cash
flows for each of the three years in the period ended July 31, 1997. These
financial statements are the responsibility of the Company's management. Our
responsibility is to express an opinion on these financial statements based on
our audits.
 
     We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.
 
     In our opinion, the financial statements referred to above present fairly,
in all material respects, the consolidated financial position of Maxwell
Technologies, Inc., and subsidiaries at July 31, 1996 and 1997, and the
consolidated results of their operations and their cash flows for each of the
three years in the period ended July 31, 1997, in conformity with generally
accepted accounting principles.
 
     As discussed in Note 8 to the consolidated financial statements, in 1996
the Company changed its method of assessing the impairment of long-lived assets
in accordance with the adoption of Statement of Financial Accounting Standards
No. 121.
 
                                                 /s/ ERNST & YOUNG LLP
 
San Diego, California
September 12, 1997
 
                                       F-2
<PAGE>   62
 
                  MAXWELL TECHNOLOGIES, INC. AND SUBSIDIARIES
 
                          CONSOLIDATED BALANCE SHEETS
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                                                                JULY 31,
                                                                           -------------------
                                                                            1996        1997
                                                                           -------     -------
<S>                                                                        <C>         <C>
ASSETS
Current assets:
  Cash and cash equivalents..............................................  $ 1,465     $   826
  Accounts receivable:
     Trade and other, less allowance for doubtful accounts of $440 and
      $350 at July 31, 1996 and 1997, respectively.......................    8,656       9,391
     Long-term contracts (Note 2)........................................    6,917       9,221
                                                                           -------     -------
                                                                            15,573      18,612
  Inventories and inventoried costs relating to long-term contracts (Note
     11).................................................................    6,808       8,722
  Recoverable income taxes...............................................      740          --
  Prepaid expenses.......................................................      548       1,203
  Deferred income taxes..................................................      161         161
                                                                           -------     -------
     Total current assets................................................   25,295      29,524
Property, plant and equipment, net (Note 11).............................   14,809      16,929
Deposits and other.......................................................      620         667
                                                                           -------     -------
                                                                           $40,724     $47,120
                                                                           =======     =======
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Accounts payable.......................................................  $14,231     $13,640
  Accrued employee compensation..........................................    2,866       4,465
  Current portion of long-term debt......................................      910         511
                                                                           -------     -------
     Total current liabilities...........................................   18,007      18,616
Long-term debt (Note 3)..................................................    1,018         465
Minority interest and additional amounts contributed.....................      954         629
Commitments and contingencies (Notes 6 and 9)
Stockholders' equity (Note 4):
  Common stock, $0.10 par value, 20,000 shares authorized, 5,687 and
     6,143 shares issued and outstanding at July 31, 1996 and 1997,
     respectively........................................................      568         614
  Additional paid-in capital.............................................   19,752      22,364
  Deferred compensation..................................................     (605)       (622)
  Retained earnings......................................................    1,030       5,054
                                                                           -------     -------
     Total stockholders' equity..........................................   20,745      27,410
                                                                           -------     -------
                                                                           $40,724     $47,120
                                                                           =======     =======
</TABLE>
 
                            See accompanying notes.
 
                                       F-3
<PAGE>   63
 
                  MAXWELL TECHNOLOGIES, INC. AND SUBSIDIARIES
 
                      CONSOLIDATED STATEMENT OF OPERATIONS
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                                                     YEAR ENDED JULY 31,
                                                              ---------------------------------
                                                               1995         1996         1997
                                                              -------     --------     --------
<S>                                                           <C>         <C>          <C>
Sales.......................................................  $75,004     $ 80,911     $101,411
Cost of sales...............................................   56,447       65,893       70,107
                                                              -------     --------     --------
  Gross profit..............................................   18,557       15,018       31,304
Operating expenses:
  Selling, general and administrative expenses..............   13,636       15,564       21,900
  Research and development expenses.........................    5,038        5,081        5,303
  Restructure and asset impairment losses (Note 8)..........       --        5,703           --
                                                              -------     --------     --------
     Total operating expenses...............................   18,674       26,348       27,203
                                                              -------     --------     --------
Operating income (loss).....................................     (117)     (11,330)       4,101
Interest expense............................................      315          329          173
Other-net (Note 11).........................................     (848)        (398)        (150)
                                                              -------     --------     --------
Income (loss) before income taxes, minority interest and
  loss from cumulative effect of change in accounting
  principle.................................................      416      (11,261)       4,078
Income tax expense (benefit) (Note 5).......................       15        1,296           --
Minority interest in net income of subsidiary...............       86           50           54
Loss from cumulative effect of change in accounting
  principle (Note 8)........................................       --        2,569           --
                                                              -------     --------     --------
Net income (loss)...........................................  $   315     $(15,176)    $  4,024
                                                              =======     ========     ========
Earnings (loss) per share:
     Income (loss) per share before cumulative effect of
       change in accounting principle.......................  $  0.06     $  (2.29)    $   0.60
                                                              =======     ========     ========
     Net income (loss) per share............................  $  0.06     $  (2.76)    $   0.60
                                                              =======     ========     ========
</TABLE>
 
                            See accompanying notes.
 
                                       F-4
<PAGE>   64
 
                  MAXWELL TECHNOLOGIES, INC. AND SUBSIDIARIES
 
                 CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY
                       (IN THOUSANDS, EXCEPT SHARE DATA)
 
<TABLE>
<CAPTION>
                                                          THREE YEARS ENDED JULY 31, 1997
                                         -----------------------------------------------------------------
                                                                                                 TOTAL
                                         COMMON     ADDITIONAL        DEFERRED     RETAINED   STOCKHOLDERS'
                                         STOCK    PAID-IN CAPITAL   COMPENSATION   EARNINGS      EQUITY
                                         ------   ---------------   ------------   --------   ------------
<S>                                      <C>      <C>               <C>            <C>        <C>
Balance at August 1, 1994...............  $534        $18,535          $   --      $ 15,891     $ 34,960
  Issuance of 28,424 shares under stock
     purchase plans.....................     3             86              --            --           89
  Net income for the year...............    --             --              --           315          315
                                          ----        -------           -----      --------
Balance at July 31, 1995................   537         18,621              --        16,206       35,364
  Issuance of 37,684 shares under stock
     option plans.......................     4            152              --            --          156
  Issuance of 93,112 shares under stock
     purchase plans.....................     9            352              --            --          361
  Deferred compensation related to
     issuance of 177,960 shares.........    18            627            (645)           --           --
  Amortization of deferred
     compensation.......................    --             --              40            --           40
  Net loss for the year.................    --             --              --       (15,176)     (15,176)
                                          ----        -------           -----      --------
Balance at July 31, 1996................   568         19,752            (605)        1,030       20,745
  Issuance of 406,656 shares under stock
     option plans.......................    41          1,985              --            --        2,026
  Issuance of 39,129 shares under stock
     purchase plans.....................     4            438              --            --          442
  Deferred compensation related to
     issuance of 10,000 shares..........     1            189            (190)           --           --
  Amortization of deferred
     compensation.......................    --             --             173            --          173
  Net income for the year...............    --             --              --         4,024        4,024
                                          ----        -------           -----      --------
Balance at July 31, 1997................  $614        $22,364          $ (622)     $  5,054     $ 27,410
                                          ====        =======           =====      ========
</TABLE>
 
                            See accompanying notes.
 
                                       F-5
<PAGE>   65
 
                  MAXWELL TECHNOLOGIES, INC. AND SUBSIDIARIES
 
                      CONSOLIDATED STATEMENT OF CASH FLOWS
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                     YEAR ENDED JULY 31,
                                                               --------------------------------
                                                                1995         1996        1997
                                                               -------     --------     -------
<S>                                                            <C>         <C>          <C>
Operating activities:
  Net income (loss)........................................... $   315     $(15,176)    $ 4,024
     Adjustments to reconcile net income (loss) to net cash
       provided by (used in) operating activities:
          Depreciation and amortization.......................   2,907        2,128       2,587
          Restructure and asset impairment losses.............      --        5,960          --
          Loss from cumulative effect of change in accounting
            principle.........................................      --        2,569          --
          Provision for losses on accounts receivable.........      45          105         184
          Loss on sales of property and equipment.............     122          118          10
          Deferred income taxes...............................     820        1,124          --
          Minority interest in net income of subsidiary.......      86           50          54
          Deferred compensation...............................      --           40         173
          Changes in operating assets and liabilities:
            Accounts receivable...............................     (52)         252      (3,223)
            Inventories.......................................     369         (469)     (1,914)
            Prepaid expenses and other........................     150          614        (702)
            Accounts payable..................................    (525)       2,153        (683)
            Accrued employee compensation.....................    (255)         185       1,599
            Income taxes payable/recoverable..................    (797)         121         832
                                                               -------     --------     -------
               Net cash provided by (used in) operating
                 activities...................................   3,185         (226)      2,941
Investing activities:
  Purchases of property, plant and equipment..................  (2,951)      (1,976)     (4,725)
  Proceeds from sales of property and equipment...............      80            6           8
                                                               -------     --------     -------
               Net cash used in investing activities..........  (2,871)      (1,970)     (4,717)
Financing activities:
  Principal payments on long-term debt........................    (929)        (909)       (952)
  Proceeds from issuance of Company and subsidiary stock......      89          517       2,502
  Repurchase of subsidiary stock..............................      --           --        (413)
                                                               -------     --------     -------
               Net cash provided by (used in) financing
                 activities...................................    (840)        (392)      1,137
                                                               -------     --------     -------
               Decrease in cash and cash equivalents..........    (526)      (2,588)       (639)
Cash and cash equivalents at beginning of year................   4,579        4,053       1,465
                                                               -------     --------     -------
               Cash and cash equivalents at end of year....... $ 4,053     $  1,465     $   826
                                                               =======     ========     =======
</TABLE>
 
                            See accompanying notes.
 
                                       F-6
<PAGE>   66
 
                  MAXWELL TECHNOLOGIES, INC. AND SUBSIDIARIES
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
NOTE 1 -- SIGNIFICANT ACCOUNTING POLICIES
 
  Description of Business
 
     The Company is a leader in pulsed power technologies, providing pulsed
power based systems and components for a wide range of commercial applications
and research and development for both commercial customers and the United States
government. The Company also offers industrial computers and subsystems,
primarily to OEMs in computer telephony and other markets, and software products
and services, both for government research and for various commercial
applications.
 
  Consolidation and Minority Interest Amounts
 
     The consolidated financial statements include the accounts of Maxwell
Technologies, Inc. and its subsidiaries. All significant intercompany
transactions and account balances are eliminated in consolidation.
 
  Cash Equivalents
 
     The Company classifies all highly liquid investments with a maturity of
three months or less when purchased as cash equivalents.
 
  Inventories
 
     Inventories are stated at the lower of cost (principally average cost
method) or market.
 
  Property, Plant and Equipment
 
     Property, plant and equipment are carried at cost. Depreciation and
amortization are provided over the estimated useful lives of the assets (three
to thirty years). Depreciation and amortization of property, plant and equipment
amounted to $3,415,000, $2,507,000 and $2,587,000 in fiscal 1995, 1996 and 1997,
respectively.
 
  Revenue Recognition
 
     The Company recognizes substantially all revenue from the sale of
manufactured products and short-term fixed price contracts upon shipment of
products or completion of services. Revenues, including estimated profits, on
long-term fixed price contracts are recognized as costs are incurred. Revenues,
including fees earned, on cost plus contracts are also recognized as costs are
incurred. Contract revenue is reflected in the Company's sales and includes
amounts received from the United States government and commercial customers for
the funded research and development efforts of the Company. Provisions are made
on a current basis to fully recognize any anticipated losses on contracts.
 
  Earnings (Loss) Per Share
 
     The computation of net income (loss) per share is based on the weighted
average shares of Common Stock outstanding plus the dilutive effects of Common
Stock equivalents arising from stock options. The weighted average number of
Common and Common equivalent shares outstanding was 5,356,000, 5,494,000 and
6,644,000 in fiscal 1995, 1996 and 1997, respectively. Net income (loss) per
share was unchanged on a fully-diluted basis.
 
                                       F-7
<PAGE>   67
 
                  MAXWELL TECHNOLOGIES, INC. AND SUBSIDIARIES
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE 1 -- SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
     Under Financial Accounting Standards Board Statement No. 128, Earnings Per
Share, the Company must change the method used to compute earnings per share in
fiscal 1998 and restate all prior periods. Under the new standard, the dilutive
effect of stock options will be excluded from basic earnings per share. The
impact is expected to result in the following basic net income (loss) per share
for the three years ended July 31:
 
<TABLE>
<CAPTION>
                                                             1995       1996      1997
                                                             -----     ------     -----
        <S>                                                  <C>       <C>        <C>
        Primary net income (loss) per share, as reported...  $0.06     $(2.76)    $0.60
                                                             -----     ------     -----
        Basic net income (loss) per share, as restated
          under Statement No. 128..........................  $0.06     $(2.76)    $0.68
                                                             =====     ======     =====
</TABLE>
 
     The impact of Statement No. 128 on the calculation of diluted net income
(loss) per share for the above periods is not expected to be material.
 
  Use of Estimates
 
     The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and the
disclosure of contingent assets and liabilities at the dates of the financial
statements and the reported amounts of revenues and expenses during the
reporting periods. Several of the industries in which the Company operates are
characterized by rapid technological change and short product life cycles. As a
result, estimates are required to provide for product returns, product
obsolescence as well as other matters. Historically, actual amounts recorded
have not varied significantly from estimated amounts.
 
  Stock Split
 
     In November 1996, the Company declared a 2-for-1 stock split of the
Company's common shares, effected as a 100% stock dividend that was distributed
on December 17, 1996 to stockholders of record as of November 26, 1996. Common
stock accounts, earnings per share and weighted average number of share amounts
from prior periods have been restated to reflect the stock split.
 
NOTE 2 -- ACCOUNTS RECEIVABLE
 
     The following tabulation shows the component elements of accounts
receivable from long-term contracts at July 31:
 
<TABLE>
<CAPTION>
                                                                      1996       1997
                                                                     ------     ------
                                                                      (IN THOUSANDS)
        <S>                                                          <C>        <C>
        U.S. Government:
          Amounts billed...........................................  $2,832     $2,108
          Amounts unbilled.........................................     427      1,326
          Retainage due upon completion of contracts...............     312        287
        Commercial customers:
          Amounts billed...........................................     988      2,693
          Amounts unbilled.........................................   2,358      2,681
          Retainage due upon completion of contracts...............      --        126
                                                                     ------     ------
                                                                     $6,917     $9,221
                                                                     ======     ======
</TABLE>
 
                                       F-8
<PAGE>   68
 
                  MAXWELL TECHNOLOGIES, INC. AND SUBSIDIARIES
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE 2 -- ACCOUNTS RECEIVABLE (CONTINUED)
     The balances billed but not paid by customers pursuant to retainage
provisions under long-term contracts will be due upon completion of the
contracts and acceptance by the customers. Substantially all unbilled
receivables at July 31, 1997 are expected to become due and payable within the
next year.
 
NOTE 3 -- LONG-TERM DEBT AND CREDIT AGREEMENTS
 
     Long-term debt consisted of the following at July 31:
 
<TABLE>
<CAPTION>
                                                                       1996      1997
                                                                      ------     ----
                                                                      (IN THOUSANDS)
        <S>                                                           <C>        <C>
        Variable rate note payable to a bank, due $42,000 monthly
          plus interest.............................................  $1,292     $750
        10.0% fixed rate promissory note, due $3,000 monthly........     236      226
        7.75% fixed rate note payable to a bank, due $100,000
          quarterly plus interest...................................     400       --
                                                                      ------     ----
                                                                       1,928      976
        Less current portion........................................     910      511
                                                                      ------     ----
                                                                      $1,018     $465
                                                                      ======     ====
</TABLE>
 
     The variable rate bank note is unsecured and bears interest at the bank's
prime rate plus one-half of one percent (9% at July 31, 1997). This bank note
contains certain restrictive covenants relating to net-worth, net-worth-ratio
and quarterly operating results.
 
     Maturities of long-term debt for each of the five years ending July 31,
2002 are: 1998-$511,000; 1999-$263,000; 2000-$14,000; 2001-$16,000; and
2002-$17,000.
 
     The Company also has an unsecured two-year bank line of credit agreement
under which the Company may borrow up to $10 million at the bank's prime rate,
or at LIBOR plus 1.75%. At July 31, 1997, there were no outstanding borrowings
under the line. The line of credit agreement provides that neither the Company
nor any of its subsidiaries may, directly or indirectly, make any distributions
of cash dividends.
 
NOTE 4 -- STOCK PLANS
 
  Stock Option Plans
 
     In December 1995, the Company adopted the 1995 Stock Option Plan under
which 500,000 shares of Common Stock were reserved for future grant. In January
1997, an additional 300,000 shares were reserved for future issuance. This Plan,
and the Company's Director Stock Option Plan provide for granting either
Incentive Stock Options or Non-Qualified Stock Options to employees and
non-employee members of the Company's Board of Directors, respectively. Options
are also outstanding under an expired stock option plan. The options granted
under these plans are to purchase Common Stock at not less than fair market
value at the date of grant. Employee options are generally exercisable in
cumulative annual installments of 30 percent or 20 percent, while options in the
Director Option Plan are exercisable in full one year after date of grant. All
options have terms of five to ten years.
 
                                       F-9
<PAGE>   69
 
                  MAXWELL TECHNOLOGIES, INC. AND SUBSIDIARIES
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE 4 -- STOCK PLANS (CONTINUED)
     The following table summarizes Company stock option activity for the three
years ended July 31, 1997.
 
<TABLE>
<CAPTION>
                                                                NUMBER         WEIGHTED
                                                               OF SHARES     AVERAGE PRICE
                                                               ---------     -------------
        <S>                                                    <C>           <C>
        Balance at August 1, 1994............................    771,758        $  5.38
          Granted............................................    224,000        $  3.77
          Exercised..........................................         --             --
          Expired or forfeited...............................   (278,014)       $  5.49
                                                                --------
        Balance at July 31, 1995.............................    717,744        $  4.84
          Granted............................................    623,600        $  4.31
          Exercised..........................................    (37,684)       $  4.13
          Expired or forfeited...............................   (107,634)       $  5.05
                                                                --------
        Balance at July 31, 1996.............................  1,196,026        $  4.57
          Granted............................................    373,700        $ 15.95
          Exercised..........................................   (406,656)       $  4.61
          Expired or forfeited...............................   (108,390)       $  4.42
                                                                --------
        Outstanding at July 31, 1997.........................  1,054,680        $  8.60
                                                                ========
        Available for future grant under the 1995 Stock
          Option Plan........................................     83,300
                                                                ========
        Available for future grant under the Director Option
          Plan...............................................    124,584
                                                                ========
</TABLE>
 
     In addition, the Company has established separate stock option plans for
its five principal operating subsidiaries. During fiscal 1997, options to
purchase various shares of subsidiary stock were granted at the estimated fair
value of the subsidiary shares, as determined by an independent outside
appraisal. Options outstanding at July 31, 1997 amount to 10.3% to 13.6% of each
subsidiary's outstanding common stock.
 
     The following table summarizes information concerning outstanding and
exercisable stock options at July 31, 1997.
 
   
<TABLE>
<CAPTION>
                                                    WEIGHTED
                                      WEIGHTED       AVERAGE                       WEIGHTED
                                      AVERAGE       REMAINING                      AVERAGE
RANGE OF EXERCISE       NUMBER        EXERCISE     CONTRACTUAL       NUMBER        EXERCISE
     PRICES           OUTSTANDING      PRICE          LIFE         EXERCISABLE      PRICE
- -----------------     -----------     --------     -----------     -----------     --------
<S>                   <C>             <C>          <C>             <C>             <C>
$ 3.56 -  5.00           476,400       $ 3.96       6.4 years        169,875        $ 4.08
$ 5.12 -  7.25           266,580       $ 6.23       3.7 years        164,580        $ 5.73
$11.00 - 20.63           311,700       $17.66       5.0 years             --        $   --
                       ---------                                     -------
                       1,054,680                                     334,455
                       =========                                     =======
</TABLE>
    
 
     The Company has adopted the disclosure-only provisions of Financial
Accounting Standards Board Statement No. 123, Accounting for Stock-Based
Compensation. In accordance with the provisions of Statement No. 123, the
Company applies Accounting Principles Board Opinion No. 25 and related
interpretations in accounting for its stock option plans, and accordingly, no
compensation cost has been recognized for stock options in 1996 or 1997. If the
Company had elected to recognize compensation cost
 
                                      F-10
<PAGE>   70
 
                  MAXWELL TECHNOLOGIES, INC. AND SUBSIDIARIES
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE 4 -- STOCK PLANS (CONTINUED)
based on the fair value method prescribed by Statement No. 123, the Company's
net income (loss) and net income (loss) per share would have been adjusted to
the pro-forma amounts indicated below:
 
<TABLE>
<CAPTION>
                                                                  YEAR ENDED JULY 31,
                                                                  --------------------
                                                                    1996         1997
                                                                  --------      ------
                                                                     (IN THOUSANDS,
                                                                    EXCEPT PER SHARE
                                                                         DATA)
        <S>                                                       <C>           <C>
        Net income (loss)
          As reported...........................................  $(15,176)     $4,024
          Pro forma.............................................   (15,305)      3,405
 
        Net income (loss) per share
          As reported...........................................  $  (2.76)     $ 0.60
          Pro forma.............................................     (2.78)       0.51
</TABLE>
 
     The impact of outstanding non-vested stock options granted prior to 1996
has been excluded from the pro forma calculations; accordingly, the 1996 and
1997 pro forma adjustments are not indicative of future period pro forma
adjustments when the calculation will reflect all applicable stock options. The
fair value of Company options at date of grant was estimated using the
Black-Scholes option-pricing model with assumptions for both 1996 and 1997 as
follows: risk-free interest rate of 6.0%; dividend yield of 0%; volatility
factor of 52%; and a weighted-average expected term of 3 years. The fair value
of subsidiary options at date of grant was estimated using the Minimum Value
option-pricing model, which is similar to the Black-Scholes model except that it
excludes the factor for volatility since there is no public market for the
subsidiary shares. The estimated weighted average fair value at grant date for
Company options granted during 1996 and 1997 was $1.74 and $7.33 per option,
respectively.
 
  Stock Purchase Plans
 
     In December 1994, the Company established the 1994 Employee Stock Purchase
Plan and a Director Stock Purchase Plan. The employee plan permits substantially
all employees to purchase Common Stock through payroll deductions at 85% of the
lower of the trading price of the Stock at the beginning or at the end of each
six-month offering period. The director plan permits non-employee directors to
purchase Common Stock at 100% of the trading price of the Stock on the date a
request for purchase is received. In fiscal years 1996 and 1997, 93,112 and
39,129 shares were issued under the two plans for an aggregate of $361,000 and
$442,000, respectively. At July 31, 1997, 339,335 shares are reserved for future
issuance under these plans.
 
  Stockholder Rights Plan
 
     In 1989, the Company adopted a Stockholder Rights Plan, and subsequently
distributed one nonvoting Common Stock purchase right ("Right") for each
outstanding share of Common Stock. The Rights are not exercisable and will not
trade separately from the Common Stock unless a person or group acquires, or
makes a tender offer for, 20% or more of the Company's Common Stock. Initially,
each Right entitles the registered holder to purchase one-half of a share of
Company Common Stock at a price of $16.25 per one-half share, subject to certain
anti-dilution adjustments. The Rights expire on June 20, 1999.
 
     If the Rights become exercisable and certain conditions are met, then each
Right not owned by the acquiring person or group will entitle its holder to
receive, upon exercise, Company Common Stock having a market value of four times
the exercise price of the Right. These provisions will not apply if a majority
of the Board of Directors determines that the acquisition or other business
combination is in the best interest of the stockholders. In addition, the
Company may redeem the Rights at a price of $0.01 per Right, subject to certain
restrictions.
 
                                      F-11
<PAGE>   71
 
                  MAXWELL TECHNOLOGIES, INC. AND SUBSIDIARIES
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE 4 -- STOCK PLANS (CONTINUED)
  Deferred Compensation
 
     In 1996 and 1997, one of the executive officers of the Company was granted
shares of the Company's Common Stock subject to certain restrictions. The shares
vest over four year periods, and at the respective grant dates, the shares
issued in fiscal 1996 had a value of approximately $645,000, while the shares
issued in fiscal 1997 had a value of approximately $190,000. Those values, net
of accumulated amortization, are shown as deferred compensation in the
stockholder's equity section of the Balance Sheet. The deferred compensation is
being amortized to expense over the four year vesting periods, and such
amortization totaled $40,000 and $173,000 in fiscal 1996 and 1997, respectively.
 
NOTE 5 -- INCOME TAXES
 
     Income taxes (credit) are as follows for the years ended July 31:
 
<TABLE>
<CAPTION>
                                                            1995       1996       1997
                                                            -----     ------     ------
                                                                  (IN THOUSANDS)
        <S>                                                 <C>       <C>        <C>
        Federal:
          Current.........................................  $(634)    $  128     $   --
          Deferred........................................    604        814         --
                                                            ------    ------     ------
                                                              (30)       942         --
        State:
          Current.........................................   (171)        44         --
          Deferred........................................    216        310         --
                                                            ------    ------     ------
                                                               45        354         --
                                                            ------    ------     ------
                                                            $  15     $1,296     $   --
                                                            ======    ======     ======
</TABLE>
 
                                      F-12
<PAGE>   72
 
                  MAXWELL TECHNOLOGIES, INC. AND SUBSIDIARIES
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE 5 -- INCOME TAXES (CONTINUED)

     Deferred income taxes reflect the net tax effects of temporary differences
between the carrying amounts of assets and liabilities for financial reporting
purposes and the amounts used for income tax purposes. The primary components of
the Company's deferred tax assets and liabilities are as follows at July 31:
 
<TABLE>
<CAPTION>
                                                              1995       1996        1997
                                                             ------     -------     -------
                                                                     (IN THOUSANDS)
    <S>                                                      <C>        <C>         <C>
    Deferred tax assets:
      Uniform capitalization, contract and inventory-related
         reserves........................................... $  723     $ 1,542     $ 1,465
      Environmental and restructure reserves................    495       1,606       1,195
      Asset write-downs under FASB Statement No. 121........     --       1,062         943
      Accrued vacation......................................    551         506         594
      Allowance for doubtful accounts.......................    217         259         321
      Other.................................................    239         426         313
      NOL carryforwards.....................................    300       2,500       1,800
      Valuation allowance...................................   (300)     (7,015)     (5,814)
                                                             ------     -------     -------
              Total deferred tax assets.....................  2,225         886         817
                                                             ------     -------     -------
    Deferred tax liabilities:
      Tax over book depreciation............................    802         617         656
      Deferred contract income recognition..................    134         108          --
      Other.................................................      4          --          --
                                                             ------     -------     -------
              Total deferred tax liabilities................    940         725         656
                                                             ------     -------     -------
              Net deferred tax assets....................... $1,285     $   161     $   161
                                                             ======     =======     =======
</TABLE>
 
     As the Company cannot carry losses back to prior years, and had a loss in
the prior year, a valuation allowance is provided on the net operating loss
carryforwards and net deferred income tax assets of the parent company. The
valuation allowance at July 31, 1997 includes approximately $700,000 relating to
employee stock option and stock purchase plan activity, which upon realization
will result in a credit to additional paid-in capital. Income tax expense in
fiscal year 1996 was to provide for a valuation allowance on beginning of year
net deferred tax assets, and to provide for income tax expense at the PurePulse
Technologies subsidiary, which filed a separate tax return for that year.
 
     As of July 31, 1997, the Company has net operating loss carryforwards for
federal and state income tax purposes of approximately $4,300,000 and
$3,400,000, respectively. The federal loss carryforward expires in fiscal year
2011, while the state loss carryforwards expire in fiscal years 1999 through
2001.
 
     The effective income tax rate varied from the statutory federal income tax
rate as follows:
 
<TABLE>
<CAPTION>
                                                              1995      1996      1997
                                                              -----     -----     -----
        <S>                                                   <C>       <C>       <C>
        Statutory federal income tax rate...................   34.0%    (34.0)%    34.0%
        State income taxes, net of federal tax benefit......    7.3      (6.0)      6.0
        Utilization of net operating loss carryforwards.....     --        --     (40.0)
        Amortization of minority interest...................  (41.5)     (1.1)       --
        Valuation allowance and other items.................    3.8      52.6        --
                                                              -----     -----     -----
        Effective income tax rate...........................    3.6%     11.5%       --%
                                                              =====     =====     =====
</TABLE>
 
                                      F-13
<PAGE>   73
 
                  MAXWELL TECHNOLOGIES, INC. AND SUBSIDIARIES
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE 6 -- LEASES
 
     Rental expense amounted to $2,110,000, $1,992,000 and $1,831,000 in fiscal
1995, 1996 and 1997, respectively, and was incurred primarily for building
rental. Future minimum rental commitments as of July 31, 1997, are as follows
(in thousands):
 
<TABLE>
                <S>                                                  <C>
                1998...............................................  $ 2,126
                1999...............................................    2,063
                2000...............................................    1,827
                2001...............................................    1,587
                2002...............................................    1,117
                Thereafter.........................................    2,672
                                                                     -------
                                                                     $11,392
                                                                     =======
</TABLE>
 
     Certain leases include renewal options for periods ranging from one to
twenty-five years and are subject to rental adjustment based on consumer price
indices. Substantially all leases provide that the Company pay for property
taxes, insurance, and repairs and maintenance.
 
NOTE 7 -- EMPLOYEE BENEFIT PLAN
 
     Substantially all employees are eligible to elect coverage under a
contributory employee savings plan which provides for Company matching
contributions based on one-half of employee contributions up to certain plan
limits. The Company's matching contributions under this plan totaled $568,000,
$541,000 and $592,000 in fiscal 1995, 1996 and 1997, respectively.
 
NOTE 8 -- IMPAIRMENT LOSSES, RESTRUCTURING AND OTHER CHARGES
 
     In fiscal 1996, the Company recorded $14.4 million of pre-tax charges
primarily in the second and third quarters. Of this amount, $9.5 million was
recorded during the first two quarters, and included asset write-downs due to
the adoption of FASB Statement No. 121, Accounting for the Impairment of
Long-Lived Assets and for Long-Lived Assets to be Disposed Of, an increase in
the valuation allowance against the Company's net deferred income tax assets,
the cost, primarily in the form of inventory reserves, of re-positioning the
Sierra Capacitor/Filter operation to focus on a new commercial business area,
and other operational reserves primarily associated with fixed-price contracts
and inventory. The $4.9 million charge in the third quarter resulted primarily
from costs associated with management changes and a restructuring of the
Company's business units.
 
     Of the first and second quarter charge, $4.1 million is attributable to the
January 1996 adoption of FASB Statement No. 121. Statement 121 requires that the
carrying amount of certain long-lived assets be written down if an impairment in
value is determined to exist and the assets are not supported by adequate
anticipated future cash flows, as defined by the FASB. Upon adoption of
Statement 121, the Company recorded impairment losses to reflect the difference
between pre-adoption carrying values and the estimated fair values of the assets
subject to review, of which approximately $2.6 million was recorded in restated
first quarter results as the cumulative effect of a change in accounting
principle, and the balance of $1.5 million impacted second quarter results.
These assets included primarily facilities and equipment associated with the
chemical analytical services group, and certain other equipment not currently in
substantive use. The chemical analytical services business was not profitable in
fiscal 1996, and the Company began exploring its possible sale during the first
quarter of fiscal 1996. The business was sold in June 1996. The estimated fair
values of the assets were determined by reference to comparable asset sales,
lease values, or estimated discounted future cash flows. The facilities subject
to the impairment loss are corporate assets, and the chemistry group
 
                                      F-14
<PAGE>   74
 
                  MAXWELL TECHNOLOGIES, INC. AND SUBSIDIARIES
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE 8 -- IMPAIRMENT LOSSES, RESTRUCTURING AND OTHER CHARGES (CONTINUED)

equipment as well as the majority of the under-utilized equipment subject to
impairment are from the Company's Technology Programs and Systems business
segment.
 
NOTE 9 -- ENVIRONMENTAL MATTER
 
     In 1992, the Company and approximately 40 other potentially responsible
parties signed a consent order with the State of California with respect to
costs to be incurred at a recycling facility to characterize and remediate
hazardous substances. To date, the site has been characterized, and the Company
and the other potentially responsible parties have paid substantially all of
their respective shares of the costs of such characterization. The estimated
cost of monitoring and remediation activities, of which the Company's share is
currently estimated at approximately 3.5%, totals approximately $23 million.
Approximately $21 million of this amount will consist of maintenance, monitoring
and related costs to be incurred over a 25-30 year period. The Company has
accrued its share of such estimated costs; on the basis of amounts accrued by
the Company, it is management's opinion that any additional liability resulting
from this situation will not have a material effect on the Company's financial
statements.
 
NOTE 10 -- BUSINESS SEGMENTS
 
     For purposes of analyzing and understanding the financial statements, the
Company's operations have been classified into the following business segments:
 
          Power Conversion Products: Includes design, development and
     manufacture of electrical components and subsystems, including products
     that capitalize on pulsed power such as ultracapacitors, microbial
     purification systems, high voltage capacitors and other electrical
     components and EMI filter capacitors.
 
          Industrial Computers and Subsystems: Includes design and manufacture
     of standard, custom and semi-custom industrial computer modules, platforms
     and fully integrated systems primarily for OEMs.
 
          Technology Programs and Systems: Includes research and development
     programs in pulsed power, pulsed power systems design and construction,
     weapons effects simulation and computer-based analytic services, primarily
     for the Department of Defense.
 
          Information Products and Services: Includes design, development and
     integration of software products and services including job cost accounting
     and management information systems and other software products including
     applications for the Internet, as well as wide-area and local-area network
     and software integration services.
 
                                      F-15
<PAGE>   75
 
                  MAXWELL TECHNOLOGIES, INC. AND SUBSIDIARIES
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE 10 -- BUSINESS SEGMENTS (CONTINUED)

     Business segment financial data for the three years ended July 31 is as
follows:
 
<TABLE>
<CAPTION>
                                                               1995         1996         1997
                                                              -------     --------     --------
                                                                       (IN THOUSANDS)
<S>                                                           <C>         <C>          <C>
Sales:
  Power Conversion Products.................................  $15,207     $ 16,448     $ 27,039
  Industrial Computers and Subsystems.......................   23,319       26,131       34,259
  Technology Programs and Systems...........................   31,064       30,198       31,087
  Information Products and Services.........................    5,414        8,134        9,026
                                                              -------     --------     --------
          Consolidated total................................  $75,004     $ 80,911     $101,411
                                                              =======     ========     ========
Operating profit (loss):
  Power Conversion Products.................................  $  (561)    $   (752)    $  2,482
  Industrial Computers and Subsystems.......................    2,287        1,078        2,417
  Technology Programs and Systems...........................    1,550        2,131        1,804
  Information Products and Services.........................   (1,097)      (3,680)      (2,886)
                                                              -------     --------     --------
          Total operating profit (loss).....................    2,179       (1,223)       3,817
  Corporate expenses and revenues...........................   (1,448)      (9,709)         434
  Interest expense..........................................     (315)        (329)        (173)
                                                              -------     --------     --------
          Income (loss) before income taxes, minority
            interest and cumulative effect of change in
            accounting principle............................  $   416     $(11,261)    $  4,078
                                                              =======     ========     ========
Identifiable assets:
  Power Conversion Products.................................  $13,932     $ 11,253     $ 12,299
  Industrial Computers and Subsystems.......................    8,000        9,166       12,167
  Technology Programs and Systems...........................   12,640        7,586        8,298
  Information Products and Services.........................    3,893        3,136        5,920
  Corporate.................................................   13,905        9,583        8,436
                                                              -------     --------     --------
          Consolidated total................................  $52,370     $ 40,724     $ 47,120
                                                              =======     ========     ========
Depreciation and amortization:
  Power Conversion Products.................................  $ 1,138     $    763     $    887
  Industrial Computers and Subsystems.......................      260          316          469
  Technology Programs and Systems...........................    1,563          994          647
  Information Products and Services.........................       61          162          258
  Corporate.................................................      393          272          326
                                                              -------     --------     --------
          Consolidated total................................  $ 3,415     $  2,507     $  2,587
                                                              =======     ========     ========
Capital expenditures:
  Power Conversion Products.................................  $ 1,078     $    670     $  1,768
  Industrial Computers and Subsystems.......................      337          529          992
  Technology Programs and Systems...........................    1,034          240          424
  Information Products and Services.........................      435          482        1,231
  Corporate.................................................       67           55          310
                                                              -------     --------     --------
          Consolidated total................................  $ 2,951     $  1,976     $  4,725
                                                              =======     ========     ========
</TABLE>
 
     Intersegment sales are insignificant. Operating profit (loss) is sales less
cost of sales and operating expenses, excluding interest expense and corporate
expenses and revenues. Corporate expenses in fiscal 1996
 
                                      F-16
<PAGE>   76
 
                  MAXWELL TECHNOLOGIES, INC. AND SUBSIDIARIES
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE 10 -- BUSINESS SEGMENTS (CONTINUED)
include certain restructuring costs and asset writedowns relating to the
adoption of FASB Statement No. 121, Accounting for the Impairment of Long-Lived
Assets and for Long-Lived Assets to be Disposed Of. Identifiable assets by
segment include the assets directly identified with those segments. Corporate
assets consist primarily of cash and cash equivalents, facilities and land, and,
as of July 31, 1997, certain telecommunications, computers and networking
equipment of the Company.
 
     Sales under United States government contracts and subcontracts are
primarily in the Technology Programs and Systems business segment, and
aggregated $32,120,000, $32,622,000 and $33,526,000, in fiscal 1995, 1996, and
1997, respectively. The portion of such sales to the United States Air Force in
fiscal 1997 amounted to 14% of total Company sales in that year. A customer of
the Industrial Computers and Subsystems business segment represented 12% of
total sales of the Company in fiscal 1997.
 
     International sales amounted to $7,318,000, $7,555,000 and $12,609,000 in
fiscal 1995, 1996, and 1997, respectively, principally to countries in Europe
and the Pacific Rim.
 
NOTE 11 -- SUPPLEMENTARY FINANCIAL INFORMATION
 
     Inventories and inventoried costs relating to long-term contracts are
classified as follows at July 31:
 
<TABLE>
<CAPTION>
                                                                1996        1997
                                                               -------     -------
                                                                 (IN THOUSANDS)
            <S>                                                <C>         <C>
            Finished goods...................................  $   714     $ 1,793
            Costs under long-term contracts..................      226          --
            Work in process..................................    1,610         882
            Raw materials and purchased parts................    4,258       6,047
                                                               -------     -------
                                                               $ 6,808     $ 8,722
                                                               =======     =======
</TABLE>
 
     Property, plant and equipment consist of the following at July 31:
 
<TABLE>
<CAPTION>
                                                                1996        1997
                                                               -------     -------
                                                                 (IN THOUSANDS)
            <S>                                                <C>         <C>
            Land and land improvements.......................  $ 3,470     $ 3,470
            Buildings and building improvements..............    7,448       7,581
            Machinery and equipment..........................   23,267      25,939
            Office furniture and equipment...................    7,249       7,861
            Leasehold improvements...........................    3,347       3,462
                                                               -------     -------
                                                                44,781      48,313
            Less allowances for depreciation and
              amortization...................................   30,192      32,113
                                                               -------     -------
                                                                14,589      16,200
            Construction in progress.........................      220         729
                                                               -------     -------
                                                               $14,809     $16,929
                                                               =======     =======
</TABLE>
 
     Accounts payable consist of the following at July 31:
 
<TABLE>
<CAPTION>
                                                                1996        1997
                                                               -------     -------
                                                                 (IN THOUSANDS)
            <S>                                                <C>         <C>
            Accounts payable and accrued expenses............  $11,618     $10,516
            Environmental reserves...........................    1,620       1,252
            Customer advances................................      993       1,872
                                                               -------     -------
                                                               $14,231     $13,640
                                                               =======     =======
</TABLE>
 
                                      F-17
<PAGE>   77
 
                  MAXWELL TECHNOLOGIES, INC. AND SUBSIDIARIES
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE 11 -- SUPPLEMENTARY FINANCIAL INFORMATION (CONTINUED)

     Included in Other-net in fiscal 1995 and 1996 is the amortization into
income over a three-year period of amounts contributed by minority stockholders
upon the organization of the Company's PurePulse Technologies, Inc. subsidiary
over such stockholders' proportionate share of PurePulse Technologies' equity.
These amounts were fully amortized at the end of the third quarter of fiscal
1996, and amounted to $508,000 and $379,000 in fiscal 1995 and 1996,
respectively. Also included in Other-net is interest income of $358,000,
$128,000 and $147,000 in fiscal 1995, 1996 and 1997, respectively.
 
     Financial instruments which subject the Company to potential concentrations
of credit risk consist principally of investments in cash equivalents and
accounts receivable. The Company invests its excess cash with major corporate
and financial institutions and in United States government backed securities.
The Company has established guidelines relative to diversification and
maturities to maintain safety and liquidity, and has not experienced any losses
on these investments. The Company's accounts receivable result from contracts
with the United States government, as well as contract and product sales to
non-government customers in various industries. The Company performs ongoing
credit evaluations of selected non-government customers and generally requires
no collateral.
 
     Supplemental disclosure of cash flow information consists of the following
for the three years ended July 31:
 
<TABLE>
<CAPTION>
                                                           1995     1996     1997
                                                           ----     ----     -----
                                                               (IN THOUSANDS)
            <S>                                            <C>      <C>      <C>
            Cash paid (refunded) for:
              Interest...................................  $315     $329     $ 173
              Income taxes...............................  $(11)    $152     $(831)
            Non-cash activities:
              Issuance of Common Stock in connection with
                 deferred compensation agreement.........  $ --     $645     $ 190
</TABLE>
 
                                      F-18
<PAGE>   78
 
                      INDUSTRIAL COMPUTERS AND SUBSYSTEMS
 
                                    [PHOTOS]
 
   
Maxwell designs, manufactures and sells industrial computers and subsystems,
such as enclosures, CPU boards (top), backplanes and fully integrated, highly
customized computer systems (Fault tolerant system for telecommunications
switching, bottom left; fault tolerant system for voice processing, bottom
 
right).
    
 
                         GOVERNMENT FUNDED RESEARCH AND
                              SYSTEMS DEVELOPMENT
 
                                    [PHOTOS]
 
Maxwell is engaged in a variety of pulsed power related and other research and
development projects funded by the United States government. The Company's
funded research and development activities provide a resource of scientific and
technical expertise and serve as an incubator for innovative technologies
(Maxwell helped design and manufacture the particle detector used in the Wake
Shield disk satellite, top; high-energy capacitor bank used for research and
testing, bottom left; high voltage power supply for a particle accelerator at
Los Alamos National Laboratory, bottom right).
<PAGE>   79
 
======================================================
 
  NO DEALER, SALESPERSON OR OTHER PERSON HAS BEEN AUTHORIZED TO GIVE ANY
INFORMATION OR TO MAKE ANY REPRESENTATIONS NOT CONTAINED IN THIS PROSPECTUS AND,
IF GIVEN OR MADE, SUCH INFORMATION OR REPRESENTATIONS MUST NOT BE RELIED UPON AS
HAVING BEEN AUTHORIZED BY THE COMPANY, THE SELLING STOCKHOLDERS, ANY OF THE
UNDERWRITERS OR ANY OTHER PERSON. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFER
TO SELL OR A SOLICITATION OF AN OFFER TO BUY ANY SECURITIES OTHER THAN THE
SHARES OF COMMON STOCK OFFERED HEREBY, NOR DOES IT CONSTITUTE AN OFFER TO SELL
OR A SOLICITATION OF AN OFFER TO BUY ANY OF THE SECURITIES OFFERED HEREBY, TO
ANY PERSON IN ANY JURISDICTION IN WHICH IT IS UNLAWFUL TO MAKE SUCH OFFER OR
SOLICITATION TO SUCH PERSON. NEITHER THE DELIVERY OF THIS PROSPECTUS NOR ANY
SALE MADE HEREUNDER SHALL UNDER ANY CIRCUMSTANCES CREATE ANY IMPLICATION THAT
THE INFORMATION CONTAINED HEREIN IS CORRECT AS OF ANY DATE SUBSEQUENT TO THE
DATE HEREOF.
 
                         ------------------------------
 
                               TABLE OF CONTENTS
 
   
<TABLE>
<CAPTION>
                                        PAGE
                                        -----
<S>                                     <C>
Prospectus Summary....................      3
Risk Factors..........................      5
Use of Proceeds.......................     15
Dividend Policy.......................     15
Price Range of Common Stock...........     15
Capitalization........................     16
Selected Consolidated Financial
  Data................................     17
Management's Discussion and Analysis
  of Financial Condition and Results
  of Operations.......................     18
Business..............................     27
Management............................     46
Principal and Selling Stockholders....     52
Description of Capital Stock..........     54
Underwriting..........................     56
Legal Matters.........................     58
Experts...............................     58
Additional Information................     58
Incorporation of Certain Documents by
  Reference...........................     59
Index to Consolidated Financial
  Statements..........................    F-1
 
=============================================
</TABLE>
    
 
======================================================
                                1,575,000 SHARES
 
                                  MAXWELL LOGO
 
                                  COMMON STOCK
                            ------------------------
 
                                   PROSPECTUS
                            ------------------------
                                COWEN & COMPANY
                               HAMBRECHT & QUIST
   
                               NOVEMBER 10, 1997
    
======================================================


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