EXHIBIT 23.3


                         Consent of Independent Auditors



We  consent  to the  reference  to our firm  under the  captions  "Experts"  and
"Selected Consolidated Financial Data" and to the use of our report dated August
31,  1995,  with  respect  to the  1995  consolidated  financial  statements  of
Ultralife Batteries,  Inc. and Subsidiary included in the Registration Statement
(Form S-3) and related  Prospectus of Ultralife  Batteries,  Inc. and Subsidiary
for the registration of 2,500,000 shares of its common stock.

                                                           /s/ Ernst & Young LLP
Syracuse, New York
February 26, 1998