This high-capacity battery from UMIDIGI is perfect for powering your mobile phone. With a capacity of 3850mAh and a voltage of 3.85V, it provides reliable and long-lasting power. The battery is designed for internal use and comes with one port for easy charging. This battery is a great choice for anyone who needs a reliable and high-performance battery for their mobile phone. It is compatible with a range of different mobile phones and is perfect for those who need a replacement battery or an additional battery for their device.