L92BP-2 BATTERY, AAA LITHIUM 2pk | Nothing outlasts Energizer Ultimate Lithium AA batteries. The Energizer Ultimate Lithium batteries are the #1 longest-lasting AA batteries complete with leak resistance and performance in extreme temperatures (-40 to 140 deg F or -40 to 60 deg C). To ensure your favorite devices operate at their peak performance, depend on Energizer Ultimate Lithium batteries for work, play and home.