Duracell Coppertop D Batteries provide dependable, trusted power to your household devices. From storm season to medical needs to the holidays, Duracell is the #1 trusted battery brand so you know it's a battery you can trust. With a guarantee of 10 years (5 years for 9V batteries) in storage, you can rest assured that they'll be ready when you need them. Crafted and infused with triple corrosion protection, safely use for large flashlights and camping lanterns, transmitters and radios, toys, and other items you use on a daily basis. Duracell 1.5 volt Coppertop batteries are available in AA, AAA, C, D, and 9V sizes. Duracell guarantees these batteries against defects in material and workmanship.