The Westinghouse AAA 1.2 Volt 350mAh Ni-Mh Solar Rechargeable Battery provides high-quality green energy with excellent performance. This ready-to-use rechargeable battery is primarily used for LED Solar Garden Lights; However, this battery can be used with other applications such as: Game Controllers, Remotes, Digital Cameras, RC cars, computer mouses, electric razors, and many other AAA Battery applications. Other rechargeable batteries lose their charge while sitting on the shelf. Westinghouse Always Ready batteries are guaranteed to have a full charge within 6 month of purchase. After One year our battery will have a charge of 85%. Therefore you will not need to charge after purchase! Holds a Charge up to 5 years!