AA household batteries that are the world's longest lasting AA batteries. They also feature leak resistant construction and superior performance in extreme temperatures ranging from -40 degrees Farenheit to 140 degrees Farenheit. 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. 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.