Enercell Alkaline batteries have up to twice as much energy stored in them as traditional zinc-carbon batteries. Enercell Alkaline batteries are suitable and hold up well in products that require a high level of energy to operate properly. Also, alkaline batteries maintain a constant capacity no matter what kind of drain they have on them. They can function in low temperatures including those below zero. Enercell’s alkaline batteries have four to nine times the life span of other battery types and you don’t have to replace them as often, saving you money in the long run. These batteries provide optimum power for devices such as digital cameras, photo flashes, toothbrushes, cordless shavers, trimmers and more!