The power in the Duracell Plus battery is 30% more effective than that of a standard Duracell Simply C battery. The devices we use on a daily basis tend to require high amounts of energy but this Duracell Plus size C battery will give you the reliable long lasting performance that you require in those devices. With an impressive storage life of up to ten years, they can be purchased in bulk quantities and stored away until they're needed without affecting its dependable performance.