As a leading manufacturer of portable computer power accessories, Battery Technology is dedicated to providing innovation, reliable & affordable battery technology to generate power & functionality for notebook computers, camcorders, portable peripherals & cellular phones. This battery is designed for HP Compaq NX9000, NX9010. Features Technology: Lithium Ion Capacity 4500 m Ah Voltage: 14.8V Compatible With For HP NX9000 / NX9010 OEM: F4809A F4812A