Duracell Coppertop AA / AAA batteries with POWER BOOST Ingredients deliver dependable power to your everyday devices throughout the home, like toys, remote controls, flashlights, calculators, clocks & radios, wireless mice, keyboards, & more. With a guarantee of 12 years in storage, you can rest assured they'll be ready when you need them. Duracell guarantees these batteries against defects in material & workmanship. From storm season to holiday needs, Duracell is the #1 trusted battery brand for the moments that matter most. Battery Type: Alkaline; Battery Size: AA; for Use With: Everyday Electronic Devices; Voltage: 1.5 V.