Duracell offers a wide range of batteries to be used in electronics that require reliable power. Duracell Plus C batteries are alkaline batteries ideal for powering all your devices. Duracell Plus C alkaline has 100% life guaranteed* (*commercial guarantee vs. the Minimum Average Duration across 2015 IEC C-size battery tests. Results may vary by device or usage pattern (IEC's website)). Unused Duracell batteries stay powered up to 10 years in ambient storage. In 1969, Duracell was part of the Apollo 11 mission and became the first battery on the moon.