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 -40AdegF to 140AdegF. Use these AA lithium batteries to power a variety of high tech and household items, whether you need smoke detector batteries, camera batteries, or double A 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 20 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.