8-K

                     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) February 28, 2007
                                                        -----------------


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


           Delaware                     1-16137                  16-1531026
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(State or other jurisdiction    (Commission File Number)        (IRS Employer
       of 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 February 28, 2007, Greatbatch, Inc. (the "Company") issued a joint press
     release with St. Jude Medical, Inc. announcing that both parties have
     entered into an amended supplier partnering agreement. This amendment
     becomes effective March 1, 2007, extends the current agreement through 2013
     and establishes Greatbatch as the exclusive supplier of battery technology
     and the critical supplier of filtered feedthrough technology to St. Jude
     Medical. Additionally, the amendment provides for year over year price
     reductions on both technologies through collaboration on manufacturing and
     supply chain efficiencies. The parties have also agreed to jointly develop
     new technologies, including the introduction of a new low cost power
     solution to support future market requirements with an implementation date
     of no later than 2009.

     The Company intends to file a copy of the agreement with its Quarterly
     Report on Form 10-Q for the fiscal quarter ended March 30, 2007.


     A copy of the release is furnished with this report as Exhibit 99.1.


Item 9.01.  Financial Statements and Exhibits

     (d)  Exhibits

     99.1 Press Release dated February 28, 2007.




                                   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: February 28, 2007                           GREATBATCH, INC.

                                                   By: /s/ Thomas J. Mazza
                                                       -------------------
                                                       Thomas J. Mazza
                                                       Senior Vice President and
                                                       Chief Financial Officer




EXHIBIT
NUMBER                DESCRIPTION
- ------                -----------

99.1                  Press Release of Greatbatch, Inc. dated February 28, 2007.

EX-99.1

                                                                    Exhibit 99.1

Greatbatch, Inc. Enters Into an Amended Supply Agreement with St. Jude Medical
Through 2013

     ST. PAUL, Minn. & CLARENCE, N.Y.--(BUSINESS WIRE)--Feb. 28,
2007--Greatbatch, Inc. (NYSE:GB) and St. Jude Medical, Inc. (NYSE:STJ) today
announced that the Parties have entered into an amended supplier partnering
agreement. This amendment, which becomes effective March 1, 2007, extends the
current agreement through 2013 and establishes Greatbatch as the exclusive
supplier of battery technology and the critical supplier of filtered feedthrough
technology to St. Jude Medical. Additionally, the amendment provides for year
over year price reductions on both technologies through collaboration on
manufacturing and supply chain efficiencies. The parties have also agreed to
jointly develop new technologies, including the introduction of a new low cost
power solution to support future market requirements with an implementation date
of no later than 2009.

     "This amendment is a demonstration of the continuing contribution of
Greatbatch to St. Jude Medical's commitment to delivering excellence in medical
device technology and services," said Eric S. Fain, M.D., executive vice
president, Development and Clinical / Regulatory Affairs, in St. Jude Medical's
Cardiac Rhythm Management Division.

     Thomas Hook, Greatbatch President and Chief Executive Officer, commented,
"I am pleased to have entered into this amendment with St. Jude Medical. Our
companies have enjoyed a strong working relationship for many years and we are
committed to the partnership."

     About St. Jude Medical

     St. Jude Medical is dedicated to making life better for cardiac,
neurological and chronic pain patients worldwide through excellence in medical
device technology and services. The Company has five major focus areas that
include: cardiac rhythm management, atrial fibrillation, cardiac surgery,
cardiology and neuromodulation. Headquartered in St. Paul, Minn., St. Jude
Medical employs more than 11,000 people worldwide. For more information, please
visit www.sjm.com.

     About Greatbatch, Inc.

     Greatbatch, Inc. is a leading developer and manufacturer of critical
components used in implantable medical devices and other technically demanding
applications. Additional information about the Company is available at:
www.greatbatch.com.


     CONTACT: Greatbatch, Inc.
              Investor Relations:
              Anthony Borowicz, 716-759-5809
              Treasurer and Director, Investor Relations
              tborowicz@greatbatch.com
              or
              St. Jude Medical, Inc.
              Investor Relations:
              Angela Craig, 651-481-7789
              Media Relations:
              Kathleen Janasz, 651-415-7042