This lightweight battery is a safe， reliable and long-lasting source of power for hours of fun with your mobile phone. It will provide enough energy for your phone to last for hours while you are talking with friends and family as well as sending short messages. It can also be easily recharged when needed.                                    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 type    Lithium Ion    <br>Battery capacity    1700mAh    <br>Voltage    3.7V    <br>Weight    0.99 oz    <br>Color    Red    <br>Dimensions    2.20" x 1.69" x 0.20" (L x W x H)    <br>                                                            Package Includes            2x 1700mAh Battery for HTC Mytouch 4G Thunderbolt 4G S610d Red