Li-Ion Replacement HP EV087AA Battery by Amstron is designed for use with the Pavilion DV9000 and DV9500 Series. Amstron batteries are precision-engineered and rigorously tested for voltage, capacity, compatibility and safety to exceed original equipment manufacturer specifications providing superior performance and reliability. • Chemistry: Li-Ion • Rating: 14.4V 4600mAh • Warranty: 1 Year