LIMITED POWER OF ATTORNEY FOR
SECTION 16 REPORTING OBLIGATIONS



	Know all by these presents, that the undersigned's hereby makes,
constitutes and appoints Larry T. DeAngelo, Ernest J. Norman and Leslie M.
Brogan as the undersigned's true and lawful attorney-in-fact, with full
power and authority as hereinafter described on behalf of and in the name,
place and stead of the undersigned to:

(1)	prepare, execute,
acknowledge, deliver and file Forms 3, 4, and 5 (including any amendments
thereto) with respect to the securities of Wilson Greatbatch Technologies,
Inc., a Delaware corporation (the "Company"), with the United States
Securities and Exchange Commission, any national securities exchanges and
the Company, as considered necessary or advisable under Section 16(a) of
the Securities Exchange Act of 1934 and the rules and regulations
promulgated thereunder, as amended from time to time (the "Exchange Act");


(2)	seek or obtain, as the undersigned's representative and on the
undersigned's behalf, information on transactions in the Company's
securities from any third party, including brokers, employee benefit plan
administrators and trustees, and the undersigned hereby authorizes any such
person to release any such information to the undersigned and approves and
ratifies any such release of information; and

(3)	perform any and all
other acts which in the discretion of such attorney-in-fact are necessary
or desirable for and on behalf of the undersigned in connection with the
foregoing.

The undersigned acknowledges that:

(1)	this Power of
Attorney authorizes, but does not require, such attorney-in-fact to act in
their discretion on information provided to such attorney-in-fact without
independent verification of such information;

(2)	any documents
prepared and/or executed by such attorney-in-fact on behalf of the
undersigned pursuant to this Power of Attorney will be in such form and
will contain such information and disclosure as such attorney-in-fact, in
his or her discretion, deems necessary or desirable;

(3)	neither the
Company nor such attorney-in-fact assumes (i) any liability for the
undersigned's responsibility to comply with the requirement of the Exchange
Act, (ii) any liability of the undersigned for any failure to comply with
such requirements, or (iii) any obligation or liability of the undersigned
for profit disgorgement under Section 16(b) of the Exchange Act; and


(4)	this Power of Attorney does not relieve the undersigned from
responsibility for compliance with the undersigned's obligations under the
Exchange Act, including without limitation the reporting requirements under
Section 16 of the Exchange Act.

	The undersigned hereby gives and
grants the foregoing attorney-in-fact full power and authority to do and
perform all and every act and thing whatsoever requisite, necessary or
appropriate to be done in and about the foregoing matters as fully to all
intents and purposes as the undersigned might or could do if present,
hereby ratifying all that such attorney-in-fact of, for and on behalf of
the undersigned, shall lawfully do or cause to be done by virtue of this
Limited Power of Attorney.

	This Power of Attorney shall remain in
full force and effect until revoked by the undersigned in a signed writing
delivered to such attorney-in-fact.

	IN WITNESS WHEREOF, the
undersigned has caused this Power of Attorney to be executed as of this 1st
day of September, 2004.





									   /s/ Thomas
J. Hook
						Signature



									   Thomas J. Hook

						Print Name



STATE OF NEW YORK

COUNTY OF ERIE




	On this 1st day of September, 2004, Thomas J. Hook
personally appeared before me, and acknowledged that he executed the
foregoing instrument for the purposes therein contained.

	IN WITNESS
WHEREOF, I have hereunto set my hand and official seal.




									   Ernest J. Norman
						Notary Public



	 						My
Commission Expires:
									   October 31, 2005