This replacement battery is designed for use with HP 15-CX and 15-DC series laptops. It has a battery capacity of 4550mAh / 52.5Wh and a voltage of 11.55V. The battery is black in color and comes with a 1-year manufacturer warranty. Please note that this battery is compatible with HP laptops only and has 3 battery cells. It is a Li-Ion battery type and has the following part numbers: SR03XL, TPN-C134, HSTNN-DB8Q, L08934-2B1, and L0885. This unit is sold as a single unit.