Replacement 1440mAh Li-ion Battery For iPhone 5 5G W/ Flex Cable + 7pc Tool Kit - Kim Rose 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