The Duracell Plus AA battery manages to retain its power, (which is 30% more than the standard Duracell AA battery), even when it has been in storage for up to ten years. This proves just how reliable and durable the performance of a Duracell Plus AA battery really is. Suitable for a high variety of devices that we use on a regular basis, such as various types of controls, clocks, motorised toys and many more, the Duracell Plus AA battery would be useful for everyone to have a supply of, whether at work or at home.