CAMELION SUPER HEAVY DUTY CELL 1.5 V AA2 PC Camelion Zinc Carbon batteries are a great choice for small household electronic devises that need continuous power such as clocks, flashlights, remote controls and transistor radios. Manganese dioxide used for the positive material and zinc/ammonium chloride for the electrlyte in a leakage proof structure. These, general purpose, batteries offer a long shelf life as well as reliability, versatility and savings.