Galaxy S3 Battery, MagicMobile Premium Pack 1x Wall Dock Charger With 2x Slim Battery 2200mAh [12 Months Warranty] ( Compatible Only with Samsung Galaxy S3) Magic Mobile 2x slim batteries for Samsung Galaxy S3. Vapacity: 2200mAh; Voltage: 3.7v. Aunthentic product from Lithium-ion Battery to last longer on your phone. Made with Grade A cells to ensure longer battery life. Fits perfectly in the phone.