NEW 10.8V 5200Mah Li-ION Notebook/Laptop Battery for HP Envy 17-1000 17-1003xx 17-1009tx 17-1011nr 17-1018tx 17-1050ep Black Chemistry: Li-ion (No Memory Effect) -Voltage : 10.8V Capacity : 5200Mah Package Includes: One battery for listed models. This Product Has 12 Months Replacement Warranty.