Nothing outlasts Energizer Ultimate Lithium AA Batteries. The household batteries are the world's longest lasting AA batteries, and feature leak resistant construction and superior performance in temperatures from -40 degrees F to 140 degrees F. Use AA lithium batteries in a variety of devices, whether you need smoke detector batteries, camera batteries, or double A batteries for your child's games. Ultimate Lithium Energizer AA batteries hold power up to 20 years in storage. To ensure your devices operate at peak performance, use Energizer Ultimate Lithium batteries for work, play and home.