The factory original Sony Ericsson DPY901649 / Sony Ericsson BST 38 is a Lithium-Polymer battery that is rated at 930 mAh. This standard capacity Sony Ericsson battery can be used as your extra or replacement Sony Ericsson W580i Battery (see all compatible cell phones below). Allow two to three complete charge cycles for the Sony Ericsson DPY901649 / BST 38 battery to reach full performance.
Compatible with: Sony-Ericsson C902i / K770i /K850i / K858 / S500i / T650i / T658 / W580i / Z770i.