VINTRONS Rechargeable Battery 1450mAh For Apple iPhone 4S 64GB, MD281LL/A, MD381LL/A, MD280LL/A, MD269LL/A Capacity: 1450mAh / 5.37Wh Type: Li-Polymer Volts: 3.7V Size : 82.30 x 31.30 x 3.90mm