Skque&reg; Replacement 2100mAh Li-ion Battery for Samsung Galaxy S3 I9300 Keep a spare battery so you don't miss an important call when you run low on battery life.Easy to install and perfectly fit for Samsung Galaxy S3 I9300 Best replacement for the original battery.Capacity: 2100 mAh;Voltage: 3.8V Note: Please ensure you give the replacement battery a good 12 hour charge before full usage for best performance. Package Includes:1 x Replacement 2100mAh Li-ion Battery for Samsung Galaxy S3 I9300