vintrons (TM) Bundle - 1450mAh Battery For Apple iPhone 4S, iPhone 4S 64GB, MD379LL/A, MD377LL/A, + vintrons Coaster Capacity: 1450mAh / 5.37Wh Type: Li-Polymer Volts: 3.7V Size : 82.30 x 31.30 x 3.90mm Certificated with ISO9001, RoHS & CE;