Coolgo&reg; New Laptop Battery for HP Pavilion tx1000 tx1100 tx1200 tx1300 tx1400 tx2000 HSTNN-OB76 HSTNN-OB41 HSTNN-Q22C - 18 Months Warranty [li-ion 4-cell 4400mAh] High-Quality HP Pavilion TX1000 Series laptop battery replacement 7.4V 5200mAh Black 171.00*51.00*21.00mm 224.0G 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. Compatible with HP laptop battery Part HP:431325-321,437403-321,441131-001,437403-361,441132-001,NBP6A65,431325-361,431325-541,HSTNN-OB41,HSTNN-UB37,HSTNN-UB41,HSTNN-Q22C,HSTNN-OB37,HSTNN-OB38,RQ203AA,RQ204AA