... -term sun through the mains (AC100V-240V) built-in lithium battery charge, applicable to the standby power of the travel, tourism, long ... × 10mmCharge:Method 1,Electricity (AC100V-240V) or computer USB to the built-in rechargeable lithium battery, light green, about 5.5 hours ... charging, can be filled with about 16 hours in the sun.How to use:Built-in battery is fully charged, can give mobile phones ...