REDGO 1440mah Li-ion Internal Replacement Battery With Flex Cable For Iphone 5 5G + 7 Tools Replacement Battery for iphone 5 Light Weight, High Capacity & Low Impedance Integrated microchip prevents overcharging and lengthens battery life 1440 mAh Extra High Capacity, extra long stand-by times Voltage: 3.8V. Battery Capacity: 1440 mAh