New in package 800mAh High Quality Li-Ion Battery for LG Vx9900 High quality Li-Ion battery Stay connected with your family and friends by getting extra battery power today This replacement battery has an integrated microchip that prevents overcharging and lengthens battery life Best replacement for the original battery with comparable standby and talk time The 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