This iPhone 4s Battery is a high-quality replacement for your original battery. It has a capacity of 1430 mAh and a voltage of 4.2, ensuring that your phone will last longer on a single charge. The battery is slim and designed to fit perfectly into your iPhone 4s. Included in the package is a box containing the battery, which is made of Li-Ion Polymer material and coloured black. The battery has one port for connectivity, which is clip-in and screwing. The cable length is standard, ensuring that it is compatible with most devices. This battery is compatible with Apple devices and is designed for internal use. 