Nothing outlasts EnergizerA(R) Ultimate Lithium(TM) batteries. The EnergizerA(R) Ultimate Lithium(TM) batteries are not only the #1 longest-lasting batteriesa |they are complete with leak resistance and performance in extreme temperatures (-40AdegF to 140AdegF or -40AdegC to 60AdegC). To ensure your favorite devices operate at their peak performance, depend on EnergizerA(R) Ultimate Lithium(TM) batteries for work, play and home. Energizer Ultimate Lithium(TM) batteries are 100% leak proof Mfg: Energizer