HP Compaq Presario CQ42 Series Battery Pack ( 4400mAh 10.8V/11.1V 6-Cell ) Chemistry: Li-ionVoltage: 10.8V/11.1VCapacity: 4400mAh / 6-Cell Color: Black The laptop Compaq Presario CQ42 Series battery is compatible with part number: HP Compaq Presario ...