A card of two Energizer MAX AAA batteries. Energizer MAX alkaline cells are 1.5 V single-use batteries for low and medium drain devices such as TV remotes, computer mice and keyboards, small torches, headlamps, toys and digital thermometers. Power Seal technology keeps the energy locked in during storage, and the pack states up to 10 years' shelf life. The AAA size (also called E92 or LR03) measures about 10.5 mm across and 44.5 mm long. The cells are designed not to leak in normal use and are marked up to three times longer lasting than carbon zinc batteries. Remove batteries from devices that will not be used for a long time.