Original HP BI03XL rechargeable Li-ion battery designed for HP laptop series including TPN-Q183 and HSN-I08C. This 11.55V battery features a 3470mAh capacity (41.7Wh) and is a genuine replacement part with model numbers 843537-541, 844203-850, and HSTNN-UB6W. It provides reliable power for compatible Pavilion and Envy models, ensuring your device stays mobile. The unit shows standard signs of previous installation but remains a functional OEM component for your hardware maintenance needs.