Description: Brand Name: 3200mah External Back Battery Leather Case Holder For Samsung Galaxy S3 Weight: 178g Material: ABS + PC Color: Black, White Batery Capacity: 3200mah Output Rate: 5V \/ 1A Output Current: 400~500 mah Input Current: 400~500 mah Cycle Life: 500 times DC Charging Time: 4hours 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. Protect surface against scratches, bumps, grease, and abrasion etc. Package included: 1 x 3200mah External Back Battery Stand Leather Case Holder For Samsung Galaxy S3 More details: