I've already more such batteries in use. The "Stay Charged" function of these batteries is worth their money. Hab relatively normal times charged NiMH batteries and they are allowed to 3 months. Lo and behold, the normal batteries were empty again, as opposed to the Duracell. Although I can not say exactly how long the batteries remain fully but would buy again at any time. Current use spare battery in your digital camera. (It annoys namely enormously if impersonated batteries "Change batteries" again into the camera cause) The only drawback to 1950mAh, the capacity could be higher.