Generic Extended 3500mAh Battery with Back Cover For Samsung Galaxy S2 i777 SII SGH-i777
"* Generic Best replacement for the original battery with increased standby and talk time.* This extended battery is two times thicker than original,so it is higher capacity and need our cover to install to the phone.* Come with special battery cover for extended battery,thicker than original back cover.* Directly from factory BAAKYEEK.Great bargain,Huge discounts,High cost-effective.* Integrated microchip inside prevents overcharging and lengthens battery life.* Pass safe test in factory,quality guarantee,1 year warranty.* Battery Type: Lithium Ion* Battery Capacity: 3500mAh* Voltage: 3.7v* Compatible model: Samsung Galaxy S2 / SII i777 SGH-i777 (not for other S2 model)(Only fit for the Specified one model,please check your model carefully before buying.)Pakage include:* 1x extended battery* 1x special fit battery cover"