Energizer Button Cell Batteries are another line of batteries from one of the top manufacturers of Alkaline batteries, Energizer. These Energizer Button batteries are available in 1.5 volt button cell, 3 volt coin battery and 12 volt mini alkaline batteries can be used in a variety of electronic devices such as watches, red dot scopes, laser sights, digital cameras, night vision scopes, riflescopes, key fobs, medical devices, and 35mm film cameras.