With 20% more capacity than standard alkaline batteries, these multipurpose Draper PowerUP Ultra Alkaline C size batteries are ideal for high-capacity applications. C size batteries are commonly used to power medium-drain devices, such as larger torches, music players (including MP3 and CD players), digital cameras and radios. These Draper PowerUp C size batteries are designed to be leakproof, and the pack contains 12 batteries.