... time after one day charge5. Intelligent Energy-saving .Specifications:1. Solar panel: 0.55W, 17% efficiency2. Li-ion battery: 3.7V 800mAh3 ... , over current, short circuit7. Advantage for electronic: a) Constant voltage 4.2V charging type b) Input current limited c) Output ... : MURATA, PANASONIC, ST, TOSHIBA, ETC8.Size:132*92*77mm Solar panel0.55W, 17% efficiencyLi-ion battery3.7V 800mAhSwitch Pinturn on ...