... factory 3W/5V Portable Folding solar charger with storage lithium-polymer batteryTechnical parameters TOLERANCE(+- 0.5)BATTERY CAPACITY: 2200mAhoutput power: 3W; ouput ... resistance, very light weight,thin film,endurable,very little influence with temperature, anti-reverse charging protection,shadow tolerance & hot ... 2SC1-3-LI 3W/5V Portable Folding solar charger with storage lithium-polymer battery