... : 1)4 LEDs indicates the power,2)When charging by Micro USB Input it indicates as:4 Blue LEDs turn on ... : Li-polymer 446580PL*2 battery,2. Capacity: 5600mAh,3. Input:Micro USB 5V/1A,4. Output:2 *USB: 5V/2000mA,5 ... per your requirements Welcome for your enquiry and order ! 6000mAh wireless solar charger for mobiles phone,smart phone ,iphone,ipad...