Coolgo Generic New Laptop Battery replacement for 8 cell Battery HP COMPAQ 6720t 7400 8200 8500 8510p 8510w nx8200 nx8220 nx9420 8400 nx7300 - 18 Months Warranty [li-ion 8-cell 5200mAh] High-Quality 8 cells laptop battery replacement for HP Pavilion NX7400 14.8V 5200mAh Black 265.00*52.80*20.20mm 405.0g Quality Certication: All the products pass the ISO9001, CE and ROHS, FCC multiple international authentication and completely accord with environmental protection requirement. Compatible with HP laptop battery HSTNN-DB06 / HSTNN-OB06 / HSTNN-C13C / HSTNN-DB06 / HSTNN-DB11 / HSTNN-I03C / HSTNN-I04C / HSTNN-LB11 / HSTNN-UB11 / 361909-001 / 361909-002 / 381374-001 / 395794-001 / 395794-002 / 398875-001 / 398876-001 / 395794-261 / 372771-001 / PB992A 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. Free shipping via USPS first class package from USA, 24 x 7 Email Support. Brand new direct from Professional Manufacturer, 18 Months warranty!