Description: Compatible Brand: For Samsung Galaxy S2 i9100 Type: Lithium-ion battery Capacity: 2450mAh Voltage: 3.7V Dimensions: 6.1x4.7x0.5mm Uses the latest Lithium Ion battery technology,giving you the best performance possible compared to other battery technologies. Our battery is sent out with little or no power, so please charge it for about 4 - 6 hours before using. Package includes: 1 x Lithium-ion battery For Samsung Galaxy S2 i9100 More details: