HP Pavilion TX 1000 Series HSTNN-OB37 7.2V 37Wh 2550mAh 4-Cell Rechargeable Li-ion Laptop Battery 441131-001.
Battery Voltage: 7.2V
Battery Watt-Hour (Wh): 37W
Battery Capacity (mAh/Ah): 2550 mAh
Battery Number of Cells: 4
Battery Type: 4W0791, Li-ion
Type: Laptop Battery