SUPEREX&reg; High Capacity 1430 mAh Replacement Battery Internal Cell Phone Battery Compatible For Samsung Galaxy S2(GT-I9100) --- Black Smart phone battery, Compatible with Samsung Galaxy S2(GT-I9100) 1430 mAh Extra High Capacity, extra-long stand-by times.Light Weight, High Capacity & Low Impedance After market Replacement battery for Canon NB-8L,All batteries use Grade A Cells and have been tested before shipment High efficience of power conversion,3.7V/1430mAh, This replacement battery has an integrated microchip that prevents overcharging and lengthens battery life