Duracell CopperTop C Alkaline Battery (4-Pack) dependable and long-lasting power for all your household devices. Featuring Duralock Power Preserve Technology, these batteries are to hold their charge for up to 10 years in storage. I for use in toys, remote controls, flashlights, calculators, clocks, radios, portable electronics, and more, they provide reliable performance whe you need it. Model Number: 13848