These Laptops Batteries are specifically designed and built for the HP Compaq HP Compaq Business Notebook NX Series With a longer power lasting time and quick time to be fully charged, the battery gives you the best performance possible compared to original manufacturer standards for HP Compaq HP Compaq Business Notebook NX Series Batteries; even it delivers 5% more power than the original HP Compaq HP Compaq Business Notebook NX Series Battery.