Energizer aa alkaline battery available in special packs energizer e300112600 these energizer max aa e91 batteries will provide dependable power for household devices the batteries are long lasting and reliable with powerseal technology they will keep their energy locked in for up to 10 years so they are always ready to go the batteries are environmentally friendly and contain no mercury or cadmium energizer e300112600 size aa alkaline battery pack of 12