Nothing outlasts Energizer Ultimate Lithium AA Batteries. These household batteries are not only the world's longest-lasting AA batteries, but they also feature leak-resistant construction and superior performance in extreme temperatures ranging from -40°F to 140°F. Use these AA lithium batteries to power a variety of high-tech and household items, whether you need smoke detector batteries, camera batteries, or AA batteries to power your child's favorite toys and games. Ultimate Lithium Energizer AA batteries weigh one-third less than standard alkaline batteries, and they hold power for up to 25 years in storage, letting you keep a ready supply available when you need them. To ensure your favorite devices operate at their peak performance, depend on Energizer Ultimate Lithium batteries for work, play, and home.