AddOn's PB992A-AA is a HP compatible LI-ION 8-CELL 14.8V 5200 mAh Notebook Battery for HP portable computers. This higher-capacity 5200 mAh battery packs more punch than the OEM. It has a similar form factor to the OEM and is made specifically for the HP series of portable computers. AddOn batteries are 100% tested and compatible for the systems intended for. Battery life depends on many factors including: available DRAM, screen brightness, applications, features, power management, battery condition and other customer preferences. AddOn part numbers mimic the OEM, and are comparable in form factor and battery life.