Top Power External Laptop Battery Charger for HP Compaq Presario CQ32 CQ42 CQ62 CQ72 Series HP Envy 17 HP Envy 17t-1000 Series HP G42 G62 G72 Series HP Pavilion dm4 dm4-1000 Dm4t-1000 Dm4t-1100 DV3-4000 Series ( NOT FOR dv3-2000 SERIES !) DV5-2000 Series(NOT FOR DV5-10XX SERIES ! ) DV6-3000 Series (NOT FOR DV6-1000 SERIES !) DV7-4000 Series (NOT FOR DV7-1000 SERIES !) DV7t-4000 Series Battery Charger [Compatible 10.8V and 11.1V HP Compaq 8 Pin Battery] Top Power External Laptop Battery Charger for HP Compaq Presario CQ32 CQ42 CQ62 CQ72 Series HP Envy 17 HP Envy 17t-1000 Series HP G42 G62 G72 Series HP Pavilion dm4 dm4-1000 Dm4t-1000 Dm4t-1100 DV3-4000 Series ( NOT FOR dv3-2000 SERIES !) DV5-2000 Series(NOT FOR DV5-10XX SERIES ! ) DV6-3000 Series (NOT FOR DV6-1000 SERIES !) DV7-4000 Series (NOT FOR DV7-1000 SERIES !) DV7t-4000 Series Battery Charger [Compatible 10.8V and 11.1V HP Compaq 8 Pin Battery]