The li-ion battery features high capacity and extra long stand-by time. It has lengthened overall battery life， providing the best possible performance. Li-ion Battery is environment-friendly without any hydrargyrum， plumbum， cadmium and other harmful elements.                                    Features            High quality Li-Ion batteryBest replacement for the original battery with comparable standby and talk timeKeep an extra battery on hand for extend standby and talk timesIntegrated microchip prevents overcharging and lengthens battery lifeThe best replacement spare battery for your phoneOur battery is sent out with little or no power， so please charge it for about 4 - 6 hours before usingThe battery operation time depends on conditions such as: Transmitting power level， Signal (distance between the phone and the base station)， Network parameters defined by the operator                                                            Specifications            Battery Capacity    1990 mAh    <br>Voltage    3.7V    <br>Dimensions    2.95 x 1.97 x 0.16 inch / 7.4 x 5 x 0.4 cm    <br>Weight    1.23 oz / 35g    <br>Color    Black    <br>                                                            Package Includes            2x 1990mAh Battery for Motorola XT875/Droid Bionic 4G