Keep your Sony Ericsson phone powered up with the genuine BST-39 Battery, designed to provide reliable and long-lasting performance. With a capacity of 920mAh, this battery is compatible with several models including the W908, Z555, TM717, W380, and W518, ensuring a perfect fit for your device. Crafted to meet the original equipment manufacturer's specifications, this Sony Ericsson battery is the ideal choice for maintaining your phone's functionality without compromising on quality. It's easy to install, offering a seamless replacement or backup power solution for your mobile device.