Solar charger 1.high efficiency: 16% 2.CE&ROHS 3.For iphone,blackberry,cellphone, PDA etc. 4. High quality, low price Specification1.High solar energy ... the build in battery using solar energy:10-15hours;8.To charge the build in battery in the charger using computer or AC ... . Portable and safeCompact size, light weight, voltage protection, safe use. solar charger