C batteries are commonly used in toys, children's games, flashlights, torches, portable audio players, and more. Alkaline batteries have a storage life of about 6 years. The AC battery measures 50 mm long and 26 mm in diameter and weighs 69 grams. They are also available in the rechargeable HR14 model, with the same diameter and thickness, and their weight varies depending on the model's capacity. Like the entire line of rechargeable batteries, their voltage is 1.2 volts, and their mAh capacity may vary by brand and model.