Do you want to buy an extra battery for your cell phone? If so， this 3.7v 1850mAh Battery for Samsung Galaxy S2 i9100 is a good choice. The battery bears the properties of high capacity and dependable performance. It is durable， reliable and lightweight to carry. It will provide your cell phone with continuous and long-lasting energy， so that you can stay connected with your family and friends happily. It contains an integrated lithium ion to prevent overcharging to prolong the lifespan of the battery.                                    Features            All batteries have been tested before shipmentStay connected with your families and friends by getting this batteryThis replacement battery has an integrated microchip to prevent overcharging and to extend battery life Best replacement battery with long-time standby and talk time Extra-long stand-by timesLightweight， high capacity and low impedance                                                             Specifications             Battery Type     Lithium Ion    <br> Dimensions     (2.36 x 1.81 x 0.20)" / (6.0 x 4.6 x 0.5)cm (L x W x H)    <br> Voltage     3.7V    <br> Capacity     1850mAh    <br> Weight     1.06oz / 30g    <br> Compatible with     SAMSUNG Galaxy S2 i9100       <br>                                                             Package Includes            1 x Battery<br>