2400mAh Battery for HP Compaq iPaq 3600, 3630, 3640, 3660, 3635, 3650, 3670 PDA + Screwdriver and Installation MANUAL 2400 mAh ULTRA High Capacity, 3.7V, with Longer Runtime Li-Polymer Rechargeable Internal Battery for iPaq 3100 3600 3700 Series Made from High Quality Japan Cells Screwdriver and Installation MANUAL Included 100% compatible with original batteries and chargers