AA Energizer Lithium Battery – Pack of 4. High powered which makes these batteries suitable for digital applications. Will only give high performance in high drain products. World’s Longest Lasting Battery for High Tech Devices. Innovative improvements make this the world’s longest-lasting AA battery. Weighs 1/3 less than standard alkaline batteries. Holds power for up to 20 years in storage. AA Energizer Lithium Battery – Pack of 4 features leak-proof construction. Complete with leak resistance and performance in extreme temperatures from -40ºC to 60ºC. To ensure your favourite devices operate at their peak performance, depend on these batteries for work, play as well as your home. Additionally, for our full range of batteries, click here.