A six-battery pack of Energizer MAX AAA alkaline cells. These 1.5 V single-use batteries suit everyday low and medium drain devices: remote controls, wireless mice and keyboards, small torches and headlamps, toys, kitchen scales and thermometers. Energizer's Power Seal technology holds the power in while the batteries are stored, and the cells are made not to leak in normal use. The AAA size (E92 / LR03) is about 10.5 mm in diameter and 44.5 mm long. A six-pack is handy for devices that take three or more cells, or to keep spares ready for the remote and the headlamp. Always replace all the cells in a device at the same time.