... charger is the device of transferring the sun light power into electrical power, SF-009 is working as: the solar panel transfer ... stored in the built in 2600mAh Lithium battery, the stored power is then exported to mobile phone, digital camera, MP3, MP4 ... with AC100V-240V. The solar mobile charger is the ideal backup power supply for business trip, traveling, long distance journey, wildness working ...