For a safe, long-lasting battery that just keeps performing, you cannot do better than Duracell Plus. The new and improved Duracell Plus C are alkaline batteries with 100% Life Guaranteed (Commercial guarantee vs. the Minimum Average Duration across 2015 IEC C-size battery tests). Ideal for reliably powering your electronic devices. Ideal for powering everyday devices, such as toys, flashlights, radios, etc. Unused batteries last up to 10 years in ambient storage. 98% of our paper-based packs are made from recycled materials. New and improved Duracell Plus C batteries Ideal for reliably powering your everyday devices 100% Life Guaranteed Unused batteries last up to 10 years in ambient storage 98% of our paper-based packs are made from recycled materials Pack of 6