SAMSUNG GALAXY S3 I9300 :1.material:ABS +PC 2.battery capacity:2600mah 3.output rate:5v/500mA 4.output current 400~500mah 5.input current 400~500mAH 6.cycle life:500times 7.DC charging time:4hours 8.Chargering/sync ,simply plug in the USB turn micro USB to the micro USB female dock,connect the USB to a powered USB equipment or computer.