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EXHIBIT 99.1

MAXWELL LABORATORIES, INC.

1994 EMPLOYEE STOCK PURCHASE PLAN

1.    Establishment of Plan.    Maxwell Laboratories, Inc. (the "Company") proposes to grant options for purchase of the Company's Common Stock to eligible employees of the Company and Subsidiaries (as hereinafter defined) pursuant to this Employee Stock Purchase Plan (the "Plan"). The adoption and implementation of this Plan are subject to Section 21 hereof. For purposes of this Plan, "parent corporation" and "Subsidiary" (when used in the plural, "Subsidiaries") shall have the same meanings as "parent corporation" and "subsidiary corporation" in Sections 425(e) and 425(I), respectively, of the Internal Revenue Code of 1986, as amended (the "Code"). The Company intends that the Plan shall qualify as an "employee stock purchase plan" under Section 423 of the Code (including any amendments or replacements of such section), and the Plan shall be so construed. Any term not expressly defined in the Plan but defined for purposes of Section 423 of the Code shall have the same definition herein. Subject to adjustment as provided in Section 14 of the Plan, the aggregate number of shares of Common Stock which may be purchased under this Plan shall not exceed 200,000 shares of Common Stock of the Company, which may be treasury shares reacquired by the Company or authorized and unissued shares, or a combination of both.

2.    Purpose.    The purpose of the Plan is to provide employees of the Company and Subsidiaries designated by the Board of Directors as eligible to participate in the Plan with a convenient means to acquire an equity interest in the Company through payroll deductions, to enhance such employees' sense of participation in the affairs of the Company and Subsidiaries, and to provide an incentive for continued employment.

3.    Administration.    The Plan is administered by the Board of Directors of the Company or by a committee designated by the Board of Directors of the Company (in which event all references herein to the Board of Directors shall be to the committee). Subject to the provisions of the Plan and the limitations of Section 423 of the Code or any successor provision in the Code, all questions of interpretation or application of the Plan shall be determined by the Board and its decisions shall be final and binding upon all participants. Members of the Board shall receive no compensation for their services in connection with the administration of the Plan, other than standard fees as established from time to time by the Board of Directors of the Company for services rendered by Board members serving on Board committees. All expenses incurred in connection with the administration of the Plan shall be paid by the Company.

4.    Eligibility.    Any employee of the Company or the Subsidiaries is eligible to participate in an Offering Period (as hereinafter defined) under the Plan except the following:

        (a)  employees who have not been continuously employed by the Company or Subsidiaries for the six-month period immediately preceding the beginning of such Offering Period; and

        (b)  employees who, together with any other person whose stock would be attributed to such employee pursuant to Section 425(d) of the Code, own stock or hold options to purchase stock or who, as a result of being granted an option under the Plan with respect to such Offering Period, would own stock or hold options to purchase stock possessing 5 percent or more of the total combined voting power or value of all classes of stock of the Company or any of its Subsidiaries.

5.    Offering Dates.    The Offering Periods of the Plan (the "Offering Period") shall be of approximately six (6) months duration commencing on January 2 and July 1 of each year and ending on the last day prior to the beginning of the next Offering Period. Payroll deductions of participants are accumulated under this Plan during Offering Periods, and such deductions commence, for any given participant, on

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the first payroll period of such participant ending during such Offering Period. The first Offering Period shall commence on January 2, 1995. The first day of each Offering Period is referred to as the "Offering Date." The last day of each Offering Period is hereinafter referred to as the "Purchase Date." The Board of Directors of the Company shall have the power to change the duration of Offering Periods with respect to future offerings without shareholder approval if such change is announced at least fifteen (15) days prior to the scheduled beginning of the first Offering Period to be affected.

6.    Participation in the Plan.    Eligible employees may become participants in an Offering Period under the Plan on the first Offering Date after satisfying the eligibility requirements by delivering to the Company's or Subsidiary's (whichever employs such employee) Human Resources department not later than December 15, 1994 for the first Offering Period under this Plan or, for subsequent Offering Periods, not later than the 15th day of the month before the Offering Date of such Offering Period, unless a later time for filing the subscription agreement is set by the Board for all eligible Employees with respect to a given Offering Period, a subscription agreement authorizing payroll deductions. An eligible employee who does not deliver a subscription agreement to the HR department by such date after becoming eligible to participate in such Offering Period under the Plan shall not participate in that Offering Period or any subsequent Offering Period unless such employee enrolls in the Plan by filing the subscription agreement with the HR department not later than the 15th day of the month preceding a subsequent Offering Date. Once an employee becomes a participant in an Offering Period, such employee will automatically participate in the Offering Period commencing immediately following the last day of the prior Offering Period unless the employee withdraws from the Plan or terminates further participation in the Offering Period as set forth in Section 11 below. Such participant is not required to file any additional subscription agreements in order to continue participation in the Plan. Any participant who has not withdrawn from the Plan pursuant to Section 11 below by the end of an Offering Period will automatically be re-enrolled in the Plan and granted a new option on the Offering Date of the next Offering Period.

7.    Grant of Option on Enrollment.    An eligible employee who enrolls in the Plan with respect to an Offering Period pursuant to Section 6 hereof, will receive a grant of an option (as of the Offering Date) to purchase on the Purchase Date up to that whole number of shares of Common Stock of the Company determined by dividing the amount accumulated in such employee's payroll deduction account during such Offering Period by the Purchase Price, as defined in Section 8 below; provided, however, that the number of shares of the Company's Common Stock subject to any option granted pursuant to this Plan shall not exceed the lesser of (a) the maximum number of shares, if any, set by the Board pursuant to Section 10(c) below with respect to the applicable Offering Period, or (b) 200% of the number of shares purchasable by using 85% of the Entry Price (as defined in Section 8(a) below) as the purchse prices.

8.    Purchase Price.    The price per share at which a share of Common Stock will be purchased in any Offering Period shall be 85 percent of the lesser of:

        (a)  the fair market value at the close of trading on the last day immediately preceding the Offering Date on which trading occurs in the public securities markets (the "Entry Price"); or

        (b)  the fair market value at the close of trading on the Purchase Date or, if no trading occurs in the Company's Common Stock in the public securities markets on such Purchase Date, then on the immediately preceding day on which such trading did occur.

        For purposes of the Plan, the term "fair market value" on a given date shall mean the closing price in U.S. dollars of a share of the Company's Common Stock on that date as reported on the NASDAQ National Market System.

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9.    Payment of Purchase Price; Changes in Payroll Deductions; Issuance of Shares.

        (a)  The purchase price of the shares is accumulated by regular payroll deductions made during each Offering Period. The deductions are made as a percentage of the employee's compensation in one percent increments not less than 1 percent nor greater than 10 percent. Compensation shall be limited to base salary or wages, bonuses, overtime and commissions, if any, paid; provided, however, that for purposes of determining a participant's compensation, any election by such participant to reduce his or her regular cash remuneration under Sections 125 or 401(k) of the Code shall be treated as if the participant did not make such election. Payroll deductions shall continue until altered or terminated as provided in the Plan.

        (b)  A participant may lower (but not increase) the rate of payroll deductions during an Offering Period by filing with the HR department a new authorization for payroll deductions, in which case the new rate shall become effective for the next payroll period commencing more than 15 days after the HR department's receipt of the authorization and shall continue for the remainder of the Offering Period unless changed as described below. Such change in the rate of payroll deductions may be made at any time during an Offering Period, but not more than one such change may be made effective during any Offering Period. A participant may increase or lower the rate of payroll deductions for any subsequent Offering Period by filing with the HR department a new authorization for payroll deductions not later than the 15th day of the month before the beginning of such Offering Period.

        (c)  All payroll deductions made for a participant are recorded in his or her account under the Plan; the funds are not segregated within general funds of the Company; and no interest accrues to the employee on the payroll deductions. All payroll deductions received or held by the Company may be used by the Company for any corporate purpose, and the Company shall not be obligated to segregate such payroll deductions.

        (d)  On each Purchase Date, so long as the Plan remains in effect and provided that the participant has not submitted a signed and completed withdrawal form as provided in Section 11 below which notifies the Company that the participant wishes to withdraw from that Offering Period under the Plan and have all payroll deductions accumulated in the account maintained on behalf of the participant as of that date returned to the participant, the Company shall apply the funds then in the participant's account to the purchase of whole shares of Common Stock reserved under the option granted to such participant with respect to the Offering Period to the extent that such option is exercisable on the Purchase Date. The purchase price per share shall be as specified in Section 8 of the Plan. Any cash remaining in a participant's account after such purchase of shares by reason of any limitation on the number of shares that may be purchased under the Plan as set forth in Section 10 hereof, shall be refunded to such participant in cash. Any amount remaining in such participant's account on a Purchase Date which is less than the amount necessary to purchase a full share of Common Stock of the Company shall be carried forward, into the next Offering Period; provided that the Company may, in its discretion, refund any such amounts to participants rather than carrying such amounts forward to the next Offering Period. In the event that the Plan has been oversubscribed, all funds not used to purchase shares on the Purchase Date shall be returned to the participant. No Common Stock shall be purchased on a Purchase Date on behalf of any employee whose participation in the Plan has terminated prior to such Purchase Date.

        (e)  As promptly as practicable after the Purchase Date, the Company shall arrange the delivery to each participant, as appropriate, of a certificate representing the shares purchased upon exercise of his or her option.

        (f)    During a participant's lifetime, such participant's option to purchase shares hereunder is exercisable only by him or her. The participant will have no interest or voting right in shares

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covered by his or her option until such option has been exercised. Shares to be delivered to a participant under the Plan will be registered in the name of the participant.

10.    Limitations on Shares to be Purchased.

        (a)  No employee shall be entitled to purchase stock under the Plan at a rate which exceeds $25,000 in fair market value, determined as of the Offering Date (or such other limit as may be imposed by the Code), for each calendar year in which the employee participates in the Plan.

        (b)  No more than 200% of the number of shares which would have been purchased if the price were 85% of the Entry Price for an Offering Period may be purchased by a participant on the Purchase Date for such Offering Period.

        (c)  No employee shall be entitled to purchase more than the Maximum Share Amount (as defined below) on any single Purchase Date. Not less than thirty days prior to the commencement of any Offering Period, the Board may, in its sole discretion, set a maximum number of shares which may be purchased by any employee at any single Purchase Date (hereinafter the "Maximum Share Amount"). In no event shall the Maximum Share Amount exceed the amounts permitted under Sections 10(a) and 10(b) above. If a new Maximum Share Amount is set, then all participants must be notified of such Maximum Share Amount not less than fifteen days prior to the commencement of the next Offering Period. Once the Maximum Share Amount is set, it shall continue to apply in respect of all succeeding Purchase Dates and Offering Periods unless revised by the Board as set forth above.

        (d)  If the number of shares to be purchased on a Purchase Date by all employees participating in the Plan exceeds the number of shares then available for issuance under the Plan, the Company will make a pro rata allocation of the remaining shares in as uniform a manner as shall be practicable and as the Board shall determine to be equitable. In such event, the Company shall give written notice of such reduction of the number of shares to be purchased under a participant's option to each employee affected thereby.

        (e)  Any payroll deductions accumulated in a participant's account which are not used to purchase stock due to the limitations in this Section 10 shall be returned to the participant as soon as practicable after the end of the Offering Period.

11.    Withdrawal.

        (a)  Each participant may withdraw from an Offering Period under the Plan by signing and delivering to the HR department a notice on a form provided for such purpose. Such withdrawal may be elected at any time on or before the 15th day of the month prior to the end of an Offering Period.

        (b)  Upon withdrawal from the Plan, the accumulated payroll deductions shall be returned to the withdrawn employee and his or her interest in the Plan shall terminate. In the event an employee voluntarily elects to withdraw from the Plan, he or she may not resume his or her participation in the Plan during the same Offering Period, but he or she may, except as provided in the following sentence, participate in any Offering Period under the Plan which commences on a date subsequent to such withdrawal by filing a new authorization for payroll deductions in the same manner set forth above for initial participation in the Plan. Any participant who is a corporate officer of the Company and who elects to withdraw from the Plan during an Offering Period may not again participate in the Plan until one full Offering Period has elapsed since the Offering Period during which such participant elected to withdraw.

12.    Termination of Employment.    Termination of a participant's employment for any reason, including retirement or death, terminates his or her participation in the Plan immediately. In such event, the payroll deductions credited to the participant's account will be returned to him or her or, in the case of

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his or her death, to his or her legal representative. For this purpose, an employee will not be deemed to have terminated employment or failed to remain in the continuous employ of the Company in the case of sick leave, military leave, or any other leave of absence approved by the Board of Directors of the Company; provided that such leave is for a period of not more than ninety (90) days or reemployment upon the expiration of such leave is guaranteed by contract or statute.

13.    Return of Payroll Deductions.    In the event an employee's interest in the Plan is terminated by withdrawal, termination of employment or otherwise, the Company shall promptly deliver to the employee all payroll deductions previously withheld. No interest shall accrue to the employee on the payroll deductions of a participant in the Plan.

14.    Capital Changes.    Subject to any required action by the shareholders of the Company, the number of shares of Common Stock covered by each option under the Plan which has not yet been exercised and the number of shares of Common Stock which have been authorized for issuance under the Plan but have not yet been placed under option (collectively, the "Reserves"), as well as the price per share of Common Stock covered by each option under the Plan which has not yet been exercised shall be proportionately adjusted for any increase or decrease in the number of issued shares of Common Stock resulting from a stock split or the payment of a stock dividend (but only on the Common Stock) or any other increase or decrease in the number of shares of Common Stock effected without receipt of consideration by the Company; provided, however, that conversion of any convertible securities of the Company shall not be deemed to have been "effected without receipt of consideration." Such adjustment shall be made by the Board, whose determination in that respect shall be final, binding and conclusive. Except as expressly provided herein, no issue by the Company of shares of stock of any class, or securities convertible into shares of stock of any class, shall affect, and no adjustment by reason thereof shall be made with respect to, the number or price of shares of Common Stock subject to an option.

        In the event of the proposed dissolution or liquidation of the Company, the Offering Period will terminate immediately prior to the consummation of such proposed action, unless otherwise provided by the Board. The Board may, in the exercise of its sole discretion in such instances, declare that the options under the Plan shall terminate as of a date fixed by the Board and give each participant the right to exercise his or her option as to all of the optioned stock, including shares which would not otherwise be exercisable. In the event of a proposed sale of all or substantially all of the assets of the Company, or the merger of the Company with or into another corporation, each option under the Plan shall be assumed or an equivalent option shall be substituted by such successor corporation or a parent or subsidiary of such successor corporation, unless the Board determines, in the exercise of its sole discretion and in lieu of such assumption or substitution, that the participant shall have the right to exercise the option as to all of the optioned stock. If the Board makes an option exercisable in lieu of assumption or substitution in the event of a merger or sale of assets, the Board shall notify the participant that the option shall be fully exercisable for a period of twenty (20) days from the date of such notice, and the option will terminate upon the expiration of such period.

        The Board may, if it so determines in the exercise of its sole discretion, also make provision for adjusting the Reserves, as well as the price per share of Common Stock covered by each outstanding option, in the event that the Company effects one or more reorganizations, recapitalizations, rights offerings or other increases or reductions of shares of its outstanding Common Stock, and in the event of the Company being consolidated with or merged into any other corporation.

15.    Nonassignability.    Neither payroll deductions credited to a participant's account nor any rights with regard to the exercise of an option or to receive shares under the Plan may be assigned, transferred, pledged or otherwise disposed of in any way (other than by will, the laws of descent and distribution or as provided in Section 22 hereof) by the participant. Any such attempt at assignment, transfer, pledge or other disposition shall be without effect.

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16.    Reports.    Individual records will be maintained for each participant in the Plan. Each participant shall receive promptly after the end of each Offering Period a report of his account setting forth the total payroll deductions accumulated, the number of shares purchased, the per share price thereof and the remaining cash balance, if any, carried forward to the next Offering Period.

17.    Notice of Disposition.    Each participant shall notify the Company if the participant disposes of any of the shares purchased in any Offering Period pursuant to this Plan if such disposition occurs within two (2) years from the Offering Date or within twelve months from the Purchase Date on which such shares were purchased (the "Notice Period"). Unless such participant is disposing of any of such shares during the Notice Period, such participant shall keep the certificates representing such shares in his or her name (and not in the name of a nominee) during the Notice Period. The Company may, at any time during the Notice Period, place a legend or legends on any certificate representing shares acquired pursuant to the Plan requesting the Company's transfer agent to notify the Company of any transfer of the shares. The obligation of the participant to provide such notice shall continue notwithstanding the placement of any such legend on certificates.

18.    No Rights to Continued Employment.    Neither this Plan nor the grant of any option hereunder shall confer any right on any employee to remain in the employ of the Company or any Subsidiary or restrict the right of the Company or any Subsidiary to terminate such employee's employment.

19.    Equal Rights and Privileges.    All eligible employees shall have equal rights and privileges with respect to the Plan so that the Plan qualifies as an "employee stock purchase plan" within the meaning of Section 423 or any successor provision of the Code and the related regulations. Any provision of the Plan which is inconsistent with Section 423 or any successor provision of the Code shall without further act or amendment by the Company or the Board be reformed to comply with the requirements of Section 423. This Section 19 shall take precedence over all other provisions in the Plan.

20.    Notices.    All notices or other communications by a participant to the Company under or in connection with the Plan shall be deemed to have been duly given when received in the form specified by the Company at the location, or by the person, designated by the Company for the receipt thereof.

21.    Shareholder Approval.    Any required approval of the shareholders of the Company shall be solicited substantially in accordance with Section 14(a) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and the rules and regulations promulgated thereunder. Approval of the adoption of this Plan shall be solicited at the first annual meeting of shareholders held subsequent to August 30, 1994, the date of adoption of this Plan by the Board. Shareholder approval of amendments to this Plan shall be obtained at a duly held meeting or by written consent only to the extent required by, and by a vote that satisfies the requirements of, Section 423 of the Code and Rule 16b-3 as promulgated under the Exchange Act ("Rule 16b-3").

22.    Designation of Beneficiary.

        (a)  A participant may file a written designation of a beneficiary who is to receive shares and cash, if any, from the participant's account under the Plan in the event of such participant's death subsequent to the end of an Offering Period but prior to delivery to him of such shares and cash. In addition, a participant may file a written designation of a beneficiary who is to receive any cash from the participant's account under the Plan in the event of such participant's death prior to a Purchase Date.

        (b)  Such designation of beneficiary may be changed by the participant at any time by written notice. In the event of the death of a participant and in the absence of a beneficiary validly designated under the Plan who is living at the time of such participant's death, the Company shall deliver such shares or cash to the executor or administrator of the estate of the participant, or if no such executor or administrator has been appointed (to the knowledge of the Company), the Company, in its discretion, may deliver such shares or cash to the spouse or to any one or more

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dependents or relatives of the participant, or if no spouse, dependent or relative is known to the Company, then to such other person as the Company may designate.

23.    Conditions Upon Issuance of Shares; Limitation on Sale of Shares.    Shares shall not be issued with respect to an option unless the exercise of such option and the issuance and delivery of such shares pursuant thereto shall comply with all applicable provisions of law, domestic or foreign, including, without limitation, the Securities Act of 1933, as amended, the Exchange Act, the rules and regulations promulgated thereunder, and the requirements of any stock exchange upon which the shares may then be listed, and shall be further subject to the approval of counsel for the Company with respect to such compliance.

        If the purchase of shares on a Purchase Date is exempt from the operation of Section 16(b) of the Exchange Act by the operation of Rule 16b-6 promulgated under the Exchange Act, to the extent required by the Exchange Act, shares purchased by a person subject to the requirements of Section 16(b) of the Exchange Act may not be sold prior to the expiration of six (6) months from the Purchase Date on which such shares were purchased (or on such other date as may be required by Rule 16b-3 or any successor rule).

24.    Applicable Law.    The Plan shall be governed by the substantive laws (excluding the conflict of laws rules) of the State of California.

25.    Amendment or Termination of the Plan.    This Plan shall be effective January 2, 1995 and shall continue until the earlier to occur of termination by the Board, issuance of all the shares of Common Stock reserved for issuance under the Plan, or ten (10) years from the adoption of the Plan by the Board. The Board of Directors of the Company may at any time amend or terminate the Plan, except that any such termination cannot affect options previously granted under the Plan, nor may any amendment make any change in an option previously granted which would adversely affect the right of any participant, nor may any amendment be made without approval of the shareholders of the Company obtained in accordance with Section 21 hereof within 12 months of the adoption of such amendment (or earlier if required by Section 21) if such amendment would:

        (a)  increase the number of shares that may be issued under the Plan;

        (b)  change the designation of the employees (or class of employees) eligible for participation in the Plan; or

        (c)  constitute an amendment for which shareholder approval is required in order to comply with Rule 16b-3 (or any successor rule) of the Exchange Act.

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EXHIBIT 99.1

MAXWELL LABORATORIES, INC. 1994 EMPLOYEE STOCK PURCHASE PLAN