With 30% more powerful energy than that of a standard Duracell battery the Duracell Plus size D battery is recommended in those devices that are used continuously on a regular basis. With help from the DuraLock power facility, the Duracell Plus size D battery can be stored for up to ten years without losing its high energy, dependable performance. Available to buy in bulk or in single pack quantities the Duracell Plus size D are suitable for use in a multitude of devices.