Power your devices with long-lasting and reliable Alkaline POWER batteries from Energizer for the expertise you expect at a great value. Energizer Alkaline POWER batteries keep your work tools and everyday devices going. Power your devices with long-lasting and reliable AA Alkaline Power batteries from Energizer for the expertise you expect at a great value. Energizer Alkaline Power AA batteries hold charge for up to 7 years while in storage, so you have power when you need it most. Available in multiple packs sizes, keep your work tools and everyday devices going with the long-lasting energy of Energizer.