Exhibit 99.1

              Greatbatch, Inc. Releases Preliminary Second Quarter
                          2005 Net Sales and Earnings;
         Quarterly net sales reach all-time record level of $63 million

    CLARENCE, N.Y.--(BUSINESS WIRE)--July 13, 2005--Greatbatch, Inc.
("GB") (NYSE:GB) (the "Company") today announced that it expects
consolidated net sales for the second quarter ended June 30, 2005 of
approximately $63 million, with corresponding GAAP earnings per
diluted share ranging from $0.21 - $0.23, inclusive of $0.06 per share
in selected charges for the previously announced Carson City and Alden
plant moves.
    The higher than expected results are attributable to strong
underlying market conditions in both the medical and commercial
product lines, combined with increased short-term ICD component demand
by CRM customers.
    The Company will host a conference call on Tuesday, August 9 at
5:00 p.m. EDT to discuss the final second quarter financial results
and expectations for the remainder of 2005. A press release detailing
the financial results will be issued after the close of the market on
August 9.

    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.
             Anthony W. Borowicz, 716-759-5809
             tborowicz@greatbatch.com