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
"