1500mAh Internal Battery for Garmin iQue 3200 , 3600 , 3600a GPS PDA + 2 Type Screwdrivers and Installation Manual Li-Ion Rechargeable Internal PDA Battery 1500mAh Capacity means more long runtime Voltage: 3.7V No Memory Effect, The battery can be recharged without loss of capacity CE and SGS-ISO-9001-2000 Approved