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 (-40ºF to 140ºF or -40ºC to 60ºC). To ensure your favourite devices operate at their peak performance, depend on Energizer Ultimate Lithium batteries for work, play and home.
Up to 10-year battery backup in AC-powered smoke detectors
Lasts up to 20% longer in toys versus Energizer MAX batteries
25% lighter than standard alkaline
Performs in extreme temperatures from -40°F to 140°F
