Nothing outlasts Energizer Ultimate Lithium AA Batteries. The household batteries are not only the world's longest lasting AA batteries, they also feature leak resistant construction and superior performance in extreme temperatures ranging from -40 degrees F to 140 degrees F. Use the AA lithium batteries in high tech or household items that require double A batteries. The Energizer AA batteries weigh one-third less than standard alkaline batteries for a lightweight power source. To ensure your devices operate at peak performance use Energizer Ultimate Lithium batteries for work, play and home.