ENERGIZER ULTIMATE LITHIUM AA L91SBP-4 4 PACK

E - snap reclosable battery pack, Longer Lasting, 33% lighter than alkaline, Performance in extreme temperatures (-40 degrees to 140 degrees), Hold power for 20 years when not in use, Leak resistant construction, Lasts 9X longer. Type: Lithium Size: "AA" Quantity: 4 Pack.