CSE New Laptop Battery for Hp Compaq Business Notebook Nx7300 Nx7400 Nc8200 Nc8230 Nw8200 Nw8240 Nx8200 Nx8220 Nx9420 8510p Nc8220 Nw8220 Nx8230 Nw8230 Nx8240 Nc8240 Nc8430 Nw8240 Nw8440 8710p 8710w 8710w Nw9440 Nw9440 Mobile Workstation [Li-ion 14.8V 8-cell 5200mAh] - 12 Month Warranty Battery type: Li-ion; Capacity: 5200mAh/77WH; Cells: 8-cell; Voltage: 14.8V. 100% New from Manufacturer. Up to 500 recharge cycles over the life of the battery. CE-/FCC-/RoHS-Certified for safety. 24 x 7 email support,12-month hassle-free warranty. Grade A cells ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and stability. Operation time: the actual operation time will depend on how much electricity is required by the device and how you use it.