8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

_____________________________________________________________ 

FORM 8-K

 _____________________________________________________________ 

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event Reported): April 1, 2013

_____________________________________________________________  

MAXWELL TECHNOLOGIES, INC.

(Exact Name of Registrant as Specified in its Charter)

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Delaware	1-15477	95-2390133
(State or Other Jurisdiction of Incorporation)	(Commission File Number)	(I.R.S. Employer Identification Number)

3888 Calle Fortunada

San Diego, California 92123

(Addresses of principal executive offices, including zip code)

(858) 503-3300

(Registrant’s telephone number, including area code)

 _____________________________________________________________

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 4.01 Changes in Registrant's Certifying Accountant.

(b)    On April 1, 2013, our audit committee engaged BDO USA, LLP (“BDO”) as our independent registered public accounting firm for our fiscal years ending December 31, 2010, 2011, 2012 and 2013. During our fiscal years ending December 31, 2011 and 2012 and through April 1, 2013, we did not (nor did anyone on our behalf) consult BDO regarding either (i) the application of accounting principles to a specified transaction, either completed or proposed; or the type of audit opinion that might be rendered with respect to our financial statements, in any case where BDO provided a written report or oral advice to us that BDO concluded was an important factor considered by us in reaching a decision as to any accounting, auditing or financial reporting issue; or (ii) any matter that was the subject of a disagreement (as that term is defined in Item 304(a)(1)(iv) of Regulation S-K and the related instructions) or a “reportable event” (as that term is defined in Item 304(a)(1)(v) of Regulation S-K).

Item 9.01 Financial Statements and Exhibits.

(d)Exhibits.

Exhibit No.	Description
99.1	Press Release issued by Maxwell Technologies, Inc. on April 2, 2013

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

MAXWELL TECHNOLOGIES, INC.
By:	/s/ Kevin S. Royal
	Kevin S. Royal      Chief Financial Officer

Date: April 2, 2013

EXHIBIT INDEX

Exhibit No.	Description
99.1	Press Release issued by Maxwell Technologies, Inc. on April 2, 2013

EX-99.1

Exhibit 99.1

News Release

Maxwell Appoints BDO USA LLP as Independent Auditor

SAN DIEGO, April 2, 2013 /PRNewswire/ -- Maxwell Technologies, Inc. (NASDAQ: MXWL) announced today that it has appointed BDO USA, LLP (“BDO”), an independent registered public accounting firm as its new independent auditor.

BDO will commence work immediately, beginning with the audit of the Company's financial statements for the fiscal years ending December 31, 2010, 2011, 2012 and 2013. BDO was selected after a competitive process, under the direction and approval of the Audit Committee of the Board of Directors, during which the Company evaluated a number of potential firms.

"BDO's international expertise and reputation for delivering independent, stringent, and comprehensive audits is well-known, and we are pleased to be working with them,” commented David J. Schramm, Maxwell's President and Chief Executive Officer.

As previously announced, Maxwell intends to restate its previously issued financial statements contained in its annual report on Form 10-K for the year ended December 31, 2011, and all unaudited quarterly reports on Form 10-Q in 2011 and 2012.

About Maxwell Technologies, Inc.

Maxwell is a leading developer and manufacturer of innovative, cost-effective energy storage and power delivery solutions. Our ultracapacitor products provide safe and reliable power solutions for applications in consumer and industrial electronics, automotive, transportation and information technology. Our high-voltage capacitor products help to ensure the safety and reliability of electric utility infrastructure and other applications involving transport, distribution and measurement of high-voltage electrical energy. Our radiation-mitigated microelectronic products include power modules, memory modules and single board computers that incorporate powerful commercial silicon for superior performance and high reliability in aerospace applications. For more information, please visit our website: www.maxwell.com.

SOURCE Maxwell Technologies, Inc.

Michael Sund +1 (858) 503-3233; msund@maxwell.com