Hewlett Packard Envy 15-1050NR Main Battery Our Hewlett Packard Envy 15-1050NR Main Battery is designed with the finest components available. We guarantee that this part will meet or exceed original manufacturer power specifications. This Main Battery is brand new and includes a 30 day money back guarantee and a 1 year warranty. Flat $3.99 shipping for your entire order to anywhere in the United States Hi-Capacity replacement 10.8V 5200mah 6 cell Li-Ion laptop battery for HP/Compaq devices. Rectangular shaped laptop battery with slit-type contacts on one side.