This is 1600mAh Replacement Battery for Apple iPhone 3G. It has high quality and durable to use， good choice for you.                                                                        Specifications                        Chemistry     Li-Polymer    <br>          Voltage     3.7V DC    <br>          Capacity     1600mAh    <br>          Compatible Models     iPhone 3G    <br>          Size     7 x 4.7 x 0.4cm / 2.76 x 1.85 x 0.16in (L x W x H)    <br>          Compatible with     Apple iPhone 3G    <br>                                                             Package Includes            1 x 1600mAh Replacement Battery for Apple iPhone 3G<br>