1250mAh Standard Li-ion Battery for Alcatel OT-155 OT-890 OT-808 OT-891   Package Content: 1x 1250mAh Li_ion Battery Cellphone not included Compatible with: Alcatel OT-155 OT-890 OT- 808 OT-891 Package Description High Capacity 1250mAh Li_ion Battery Quantity:1 Battery package might vary * This battery has the same dimension as your stock battery. * You do not need a special back cover to use it. * Brand : Sporting Persistence * Voltage: 3.7V. * Battery Capacity : 1250mAh * High quality Li-Ion battery. * Integrated microchip prevents overcharging and lengthens battery life. * The best replacement spare battery for your phone. * Our battery is sent out with little or no power, so please charge it for about   6 - 12 hours before using. * 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. * This Battery could also be charged in the phone directly thru the   phone charger .