For a safe, long-lasting battery that just keeps performing, you can't do better than Duracell Plus. The new and improved Duracell Plus C are alkaline batteries with a 100% life guaranteed. Ideal for powering everyday devices, such as toys, flashlights, radios, and other electronic devices. They last up to 10 years in ambient storage when unused. Our paper-based packs are made from 98% recycled materials. A pack of 2 batteries is included.