U.S. SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 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) October 8, 2004

WILSON GREATBATCH TECHNOLOGIES, INC.
 (Exact name of registrant as specified in its charter)

               Delaware                 1-16137                      16-1531026
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    (State or other jurisdiction of (Commission File Number)    (IRS Employer
(State or other jurisdiction of (Commission File Number)    (IRS Employer
	
            incorporation)                                   Identification No.)

      9645 Wehrle Drive, Clarence, New York                          14031
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     (Address of principal executive offices)                     (Zip Code)	

Registrant's telephone number, including area code (716) 759-5600

Not Applicable

(Former name or former address, if changed since last report)
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:
[ ] 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 1.01. Entry into a Material Definitive Agreement
On October 8, 2004, Wilson Greatbatch Technologies, Inc (the "Company") entered into a first amendment to its Battery Supply Agreement ("Amendment") with Cardiac Pacemakers, Inc., d/b/a Guidant Corporation. The Amendment is effective as of August 16, 2004. Pursuant to the Amendment, the parties have revised paragraph V C. by adding QHR Frontier Cell Pricing to the original agreement, dated April 10, 2003. All other terms of the original agreement remain unchanged.
The Company intends to file a copy of the Amendment with its Annual Report on Form 10-K for the fiscal year ended December 31, 2004.

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, thereunto duly authorized.

Dated:  October 14, 2004         WILSON GREATBATCH TECHNOLOGIES, INC.

                                          By: /s/ Lawrence P. Reinhold
                                              -------------------------------
                                              Lawrence P. Reinhold
                                              Executive Vice President and
                                              Chief Financial Officer