... MP4 and digital products through the output port to charge the solar charger in long-term ... -240V) built-in lithium battery charge, applicable to the standby power of the travel, tourism, ... :Method 1,Electricity (AC100V-240V) or computer USB to the built-in rechargeable lithium battery, light green, ... hours in the sun.How to use:Built-in battery is fully charged, can give mobile phones, digital cameras ...