Power on with theduracell aaa batteriesr stock up with multipacks of 12 24 or 40r duracell brand is known for having 30 more power than standard batteriesr keep game controllers mp3 players remotes clocks and more fully chargedr low temperature performance so dont get hot while theyre workingr longer storage life than competitor brandsr coppertop technology for advanced performancer r buying optionsr r 399 pound instead of 999 pound for a 12 pack save 6