Energizer ultimate lithium AAA batteries. These household batteries are not only the #1 longest lasting AAA batteries in high-tech devices, but they also feature leak resistant construction and superior performance in extreme temperatures ranging from -40°F to 140°F. Use these AAA lithium batteries to power a variety of high tech and household items, whether you need batteries for flashlights, game controllers, digital cameras, or your child's favorite toys and games. Ultimate lithium energizer AAA batteries weigh one-third less than standard alkaline triple A batteries, making them a lightweight power source. Energizer ultimate lithium batteries.