Coolgo New Laptop Battery for Battery for HP Pavilion DM4-3170SE DM4-3177NR DV7-4178NR DV7-6157NR G6-1A22CABattery for HP Pavilion DM4-3170SE DM4-3177NR DV7-4178NR DV7-6157NR G6-1A22CA High-Quality HP Pavilion DM4-1000 dm4-1100 dm4-1200 dm4-1300 dm4t DV7-4000 dv7-6000 Series laptop battery replacement 10.8V 5200mAh Black 6 cell Quality Certication: All the products pass the ISO9001, CE and ROHS, FCC multiple international authentication and completely accord with environmental protection requirement. Consummate Design: Excellent design makes the product not only has the overcharge, discharge and short circuit multiple protection, but also to balance charge-discharge of all the internal cells. Environmental Test: Standard modern assembly line. All products have passed a variety of charge-discharge and aging test before they leave the factory. 100% quality test for all items. Notice: Not work for HP MO06 MO09 HSTNN-IB79 HSTNN-W50C HSTNN-UB72 HSTNN-DB73 HSTNN-IB72 and laptop models HP Pavilion dm4-2xxx DV3-1xxx, DV3-2xxx, DV3-3xxx DV5-1xxx DV6-1xxx, DV6-2xxx, DV6-4xxx, DV6-5xxx DV7-1xxx, DV7-2xxx, DV7-3xxx, DV7-5xxx Series and Compaq Presario CQ40 Series.