Keep your Sony Ericsson handset powered up with this genuine Sony Ericsson BST-39 battery, designed specifically for the W380i, W508, W508i, W910, W910i, and Z555 models. With a capacity of 920mAh, this internal battery is crafted to match the original specifications of your device, ensuring a reliable and long-lasting charge. Featuring a sleek black color, this OEM battery maintains the plain design and finish of your phone, blending seamlessly with your device's aesthetic. It operates on a standard 5V voltage and includes one port for a straightforward connection. Please note that the charger is not included, and the battery is version 1, specifically tailored for the compatible Sony Ericsson models.