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SCHEDULE 13G
Under the Securities Exchange Act of 1934
 (Amendment No.)
MAXWELL TECHNOLOGIES, INC.

(Name of Issue)

Common Stock, Par Value $0.10 Per Share

(Title of Class of Securities)

577767106

(CUSIP Number)

December 31, 2007

(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which this
Schedule is filed:
[X ] Rule 13d-1(b)
[ ] Rule 13d-1(c)
[ ] Rule 13d-1(d)
* The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.
The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

CUSIP No. 577767106                    13G
_____________________________________________________________________________
1.   NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

                MERRILL LYNCH & CO., INC. (MERRILL LYNCH)

_____________________________________________________________________________
2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                 (a)  [_]
                                                                 (b)  [X]
_____________________________________________________________________________
3.   SEC USE ONLY

_____________________________________________________________________________
4.   CITIZENSHIP OR PLACE OF ORGANIZATION

                           Delaware
_____________________________________________________________________________
  NUMBER OF    5.   SOLE VOTING POWER

   SHARES                  Disclaimed (See #9 below)
            _________________________________________________________________
BENEFICIALLY   6.   SHARED VOTING POWER

  OWNED BY                 Disclaimed (See #9 below)
            _________________________________________________________________
    EACH       7.   SOLE DISPOSITIVE POWER

  REPORTING                Disclaimed (See #9 below)
               ______________________________________________________________
   PERSON      8.   SHARED DISPOSITIVE POWER

    WITH                   Disclaimed (See #9 below)
_____________________________________________________________________________
9.   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

Merrill Lynch & Co., Inc. disclaims beneficial ownership in all shares
of Maxwell Technologies, Inc., held by Merrill Lynch International, Merrill
Lynch Bank & Trust Co., FSB and Merrill Lynch, Pierce, Fenner & Smith
Incorporated.
_____________________________________________________________________________
10.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

                                                                          [_]
_____________________________________________________________________________
11.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

                           Disclaimed (See #9 above)
_____________________________________________________________________________
12.  TYPE OF REPORTING PERSON*

                           HC, CO
_____________________________________________________________________________
                     *SEE INSTRUCTIONS BEFORE FILLING OUT!

CUSIP No. 577767106                    13G

_____________________________________________________________________________
1.   NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

             Merrill Lynch International
_____________________________________________________________________________
2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

           (a)  [_]
                                                                 (b)  [_]

_____________________________________________________________________________
3.   SEC USE ONLY

____________________________________________________________________________
4.   CITIZENSHIP OR PLACE OF ORGANIZATION

                           England
____________________________________________________________________________
  NUMBER OF    5.   SOLE VOTING POWER

   SHARES                  16,617
            _________________________________________________________________
BENEFICIALLY   6.   SHARED VOTING POWER

  OWNED BY                  0
            _________________________________________________________________
    EACH       7.   SOLE DISPOSITIVE POWER

  REPORTING                16,617
               ______________________________________________________________
   PERSON      8.   SHARED DISPOSITIVE POWER

    WITH                   0
_____________________________________________________________________________
9.   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                           16,617
_____________________________________________________________________________
10.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

                                                                          [_]
_____________________________________________________________________________
11.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

                           .08%
_____________________________________________________________________________
12.  TYPE OF REPORTING PERSON*

                           BD

CUSIP NO. 577767106                 13G
_____________________________________________________________________________
1.   NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

             Merrill Lynch Pierce, Fenner & Smith Incorporated
_____________________________________________________________________________
2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                 (a)  [_]
                                                                 (b)  [_]

_____________________________________________________________________________
3.   SEC USE ONLY

____________________________________________________________________________
4.   CITIZENSHIP OR PLACE OF ORGANIZATION

                           Delaware
____________________________________________________________________________
  NUMBER OF    5.   SOLE VOTING POWER

   SHARES                  1,149,802
            _________________________________________________________________
BENEFICIALLY   6.   SHARED VOTING POWER

  OWNED BY                  0
            _________________________________________________________________
    EACH       7.   SOLE DISPOSITIVE POWER

  REPORTING                1,149,802
               ______________________________________________________________
   PERSON      8.   SHARED DISPOSITIVE POWER

    WITH                   0
_____________________________________________________________________________
9.   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                         1,149,802
_____________________________________________________________________________
10.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

                                                                          [_]
_____________________________________________________________________________
11.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

                           5.64%
_____________________________________________________________________________
12.  TYPE OF REPORTING PERSON*

                           BD, IA

_____________________________________________________________________________

CUSIP No. 577767106                    13G

_____________________________________________________________________________
1.   NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

             Merrill Lynch Bank & Trust Co., FSB
_____________________________________________________________________________
2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

                                                                 (a)  [_]
                                                                 (b)  [_]

_____________________________________________________________________________
3.   SEC USE ONLY

____________________________________________________________________________
4.   CITIZENSHIP OR PLACE OF ORGANIZATION

                           New Jersey
____________________________________________________________________________
  NUMBER OF    5.   SOLE VOTING POWER

   SHARES                  15,060
            _________________________________________________________________
BENEFICIALLY   6.   SHARED VOTING POWER

  OWNED BY                  0
            _________________________________________________________________
    EACH       7.   SOLE DISPOSITIVE POWER
  REPORTING                15,060
               ______________________________________________________________
   PERSON      8.   SHARED DISPOSITIVE POWER

    WITH                   0
_____________________________________________________________________________
9.   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                           15,060
_____________________________________________________________________________
10.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

                                                                          [_]
_____________________________________________________________________________
11.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

                           .07%
_____________________________________________________________________________
12.  TYPE OF REPORTING PERSON*

                           BK

Item 1(a).  Name of Issuer:
                      Maxwell Technologies, Inc.
_____________________________________________________________________________
Item 1(b).  Address of Issuer's Principal Executive Offices:

                        9244 Balboa Avenue
                     San Diego, California 92123
_____________________________________________________________________________
Item 2(a).  Name of Person Filing:

              MERRILL LYNCH & CO., INC. (ML&CO.,INC)
              MERRILL LYNCH International (MLI)
              Merrill Lynch, Pierce, Fenner & Smith Incorporated (MLPF&S)
              MERRILL LYNCH BANK & TRUST CO., FSB (MLB&T,FSB)
___________________________________________________________________________
Item 2(b).  Address of Principal Business Office, or if None, Residence:

            MERRILL LYNCH & CO. INC.            MERRILL LYNCH INTERNATIONAL
            FOUR WORLD FINANCIAL CENTER         2 KING EDWARD STREET
           250 VESEY STREET, 12th FLOOR             LONDON EC1A 1HQ
              NEW YORK, NEW YORY 10080

                    Merrill Lynch, Pierce, Fenner & Smith
                       Four World Financial Center
                       250 Vesey Street, 12th Floor
                         New York, New York 10080

                    Merrill Lynch Bank & Trust Co., FSB
                           C/O Merrill Lynch
                        4 World Financial Center
                       250 Vesey Street, 12th Floor
                             New York, NY 10281
_____________________________________________________________________________
Item 2(c).  Citizenship:

                                  SEE ITEM 4 OF COVER PAGES
_____________________________________________________________________________
Item 2(d).  Title of Class of Securities:

                   Common Stock, Par Value $0.10 Per Share
_____________________________________________________________________________

Item 2(e).  CUSIP Number:
                                  577767106
_____________________________________________________________________________

Item 3.    If This Statement is Filed Pursuant to Rule 13d-1(b), or 13d-2(b)
or (c), Check Whether the Person Filing is a:

ML & Co. is a parent holding company in accordance with Rule
13d-1(b)(1)(ii)(G).
MLI, a London-based broker-dealer in securities, is a member of the
International Securities Markets Association and its activities are
regulated by the U.K. Securities and Futures Authority Limited and the
London Stock Exchange.  MLI is eligible to file this statement of
beneficial ownership on Schedule 13G pursuant to a November 24, 1993
no-action letter from the United States Securities and Exchange Commission's
Division of Corporation Finance (1993 SEC No-Act. LEXIS 1121 (November
24, 1993)).

(a) [X] Broker or dealer registered under Section 15 of the Exchange Act.
(b  [X] Bank as defined in Section 3(a)(6) of the Exchange Act.
(c) [_] Insurance company as defined in Section 3(a)19) of the Exchange Act.
(d) [ ] Investment company registered under Section 8 of the Investment
        Company Act.
(e) [X] An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E)
(f) [_] An employee benefit plan or endowment fund in accordance with
           Rule 13d-1(b)(1)(ii)(F)
(g) [ ] A parent holding company or control person in accordance with
           Rule 13d-1(b)(1)(ii)(G)
(h) [_] A savings association as defined in Section 3(b) of the Federal
           Deposit Insurance Act
(i) [_] A church plan that is excluded from the definition of an investment
        company under Section 3(c)(14) of the Investment Company Act
(j) [_] Group, in accordance with Rule 13d-1(b)(1)(ii)(J).

CUSIP No. 594972408                      13G

Item 4.  Ownership.

Provide the following information regarding the aggregate number and
percentage of the class of securities of the issuer identified in Item 1.

(a)     Amount beneficially owned:
                             1,181,479 Shares Common Stock
(b)     Percent of class:
                             5.79%

(c)     Number of shares as to which such person has:

          (i)   Sole power to vote or to direct the vote:
                                                SEE ITEM 5 OF COVER PAGES
          (ii)  Shared power to vote or to direct the vote:
                                                SEE ITEM 6 OF COVER PAGES
          (iii) Sole power to dispose or to direct the disposition of:
                                                SEE ITEM 7 OF COVER PAGES
          (iv)  Shared power to dispose or to direct the disposition of
                                                SEE ITEM 8 OF COVER PAGE
_____________________________________________________________________________
Item 5.  Ownership of Five Percent or Less of a Class.

If this statement is being filed to report the fact that as of the date
hereof the reporting person has ceased to be the beneficial owner of more than
5 percent of the class of securities, check the following [ ]
______________________________________________________________________________
Item 6.  Ownership of More Than Five Percent on Behalf of Another Person.

                            NOT APPLICABLE
______________________________________________________________________________

Item 7.  Identification and Classification of the Subsidiary Which Acquired the
         Security Being Reported on by the Parent Holding Company.

MLI is a London-based broker-dealer in securities which provides its customers
with general investment banking, advisory, dealing and corporate finance
services, organized under the laws of England and Wales.  MLI is an indirect
wholly owned subsidiary of ML & Co.

Merrill Lynch, Pierce, Fenner & Smith Incorporated, a US Broker/Dealer, and
Investment Advisor is a wholly owned subsidiary of Merrill Lynch & Co., Inc.

Merrill Lynch Bank & Trust Co., FSB, a federal savings bank, is a wholly
owned subsidiary of Merrill Lynch & Co., Inc.

______________________________________________________________________________
Item 8.  Identification and Classification of Members of the Group.

                        NOT APPLICABLE
______________________________________________________________________________
Item 9.  Notice of Dissolution of Group.

                   NOT APPLICABLE
______________________________________________________________________________

CUSIP No. 577767106                     13G

Item 10.  Certifications.

By signing below I certify that, to the best of my knowledge and belief,
the securities referred to above were acquired and are held in the
ordinary course of business and were not acquired and are not held for
the purpose of or with the effect of changing or influencing the control
of the issuer of the securities and were not acquired and are not held in
connection with or as a participant in any transaction having that
purpose or effect.

                                    SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete
and correct.

February 14, 2008

MERRILL LYNCH & CO., INC.           MERRILL LYNCH INTERNATIONAL

By:  /s/ Pia Thompson               By:  /s/ Andrew Briski
--------------------------------   -------------------------------------
Name:    Pia Thompson               Name:    Andrew Briski
Title:   Assistant Secretary        Title:   Managing Director

MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED

By:  /s/ Pia Thompson
-------------------------------
Name:    Pia Thompson
Title:   Assistant Secretary
MERRILL LYNCH BANK & TRUST CO., FSB

By:  /s/ Jennifer Marre
-----------------------------------
Name:    Jennifer Marre
Title:   First Vice President

* Executed pursuant to a Power of Attorney, dated November 17, 1995, a copy
 of which is attached hereto as Exhibit A.

                                  Schedule 13G
                                    Exhibit A

                                Power of Attorney

     The undersigned, Merrill Lynch & Co., Inc. (the "Corporation"), a
corporation duly organized under the laws of Delaware, with its principal
place of business at World Financial Center, North Tower, 250 Vesey Street,
New York, New York 10281 does hereby make, constitute and appoint Richard B.
Alsop, Richard D. Kreuder, Andrea Lowenthal, Gregory T. Russo, or any
individual from time to time elected or appointed as secretary or an
assistant secretary of the Corporation, acting severally, each of whose

address is Merrill Lynch & Co., Inc., World Financial Center, North Tower,
250 Vesey Street, New York, New York 10281, as its true and lawful attorneys-
in-fact, for it and in its name, place and stead (i) to execute on behalf of
the Corporation and cause to be filed and/or delivered, as required under
Section 13(d) of the Securities Exchange Act of 1934 (the "Act") and the
regulations thereunder, any number, as appropriate, of original, copies, or
electronic filings of the Securities and Exchange Commission Schedule 13D or
Schedule 13G Beneficial Ownership Reports (together with any amendments and
joint filing agreements under Rule 13d-1(f)(1) of the Act, as may be required
thereto) to be filed and/or delivered with respect to any equity security (as
defined in Rule 13d-1(d) under the Act) beneficially owned by the undersigned
and which must be reported by the undersigned pursuant to Section 13(d) of
the Act and the regulations thereunder, (ii) to execute on behalf of the
Corporation and cause to be filed and/or delivered, any number, as
appropriate, of original, copies or electronic filings of any forms
(including without limitation), Securities and Exchange Commission Forms 3, 4
and 5) required to be filed pursuant to Section 16(a) of the Act and the
regulations thereunder, and (iii) generally to take such other actions and
perform such other things necessary to effectuate the foregoing as fully in a
all respects as if the undersigned could do if personally present.

     This Power of Attorney shall remain in effect until revoked, in writing,
by the undersigned.

     IN WITNESS WHEREOF, the undersigned has executed this Power of Attorney,
this 17th day of November 1995.

                                  MERRILL LYNCH & CO., INC.

                                  By:  /s/ David H. Komansky

                                  ____________________________________________
                                  Name:  David H. Komansky
                                  Title: President and Chief Operating Officer