800mAh Eurus Internal Li-Ion Battery for All iPods MINI MP3 Player incl. 4GB and 6GB Models + Two(2) Types Special Screwdrivers and Installation MANUAL 800 mAh Ultra High Capacity, 3.7V, with Longer Runtime Li-Ion Rechargeable Internal Battery Made from High Quality Japan Cells 100% compatible with original batteries and chargers for All iPods MINI including 4GB and 6GB