Cameron Sino CS-HT9292RL Extended Cell Phone Battery + Back Cover for HTC EVO 4G A9292 / Supersonic - 2200 mAh - Retail Packaging Capacity: 2200mAh / 8.14Wh Type: Li-ion Volts: 3.7V Size : 44.68 x 32.77 x 19.92mm Certificated with ISO9001, RoHS & CE;