Skyvast Business Notebook Laptop Battery for HP Compaq 6535B HSTNN-IB68 EliteBook 6930P 8440P Brand New - High Performance, Battery type: Li-ion, Color: Black. Capacity: 5200mAh ; Voltage: 11.1V ; Cells: 6-cell. 100% New from Manufacturer. Up to 500 recharge cycles. Warranty: 12 Months warranty, 30 days money return guarantee. Meticulous packed and shipped with multiple layers of protection.