Kodak Xtralife AA Alkaline Battery, LR6, 1.5V, in a pack of 4, is a common battery for everyday devices. Kodak Xtralife is Kodak's line of alkaline batteries designed for everyday household appliances such as remote controls, toys, or flashlights. The AA format is one of the most commonly used sizes in household electronic devices. It's a preferred option for replacing general-purpose batteries at home without having to resort to more specific formats.