C batteries are commonly used in toys, children's games, camera flashes, flashlights, portable audio players, etc. Alkaline batteries have a shelf life of about 6 years, AC batteries are 50 mm long, 26 mm in diameter, and weigh 69 grams. They are also available as a rechargeable HR14 model with the same diameter and thickness. Their weight varies depending on the capacity of the model. As with all rechargeable batteries, the voltage is 1.2 volts and the capacity in mAh can vary depending on the brand and model.
