Hipower Laptop Battery For Alienware AREA-51 935T2280F, 9750, M9700, M9700I, M9750, M9750 17IN Aurora M9700, SMP-935T2280F, W83066LC, W84066LC Laptop Notebook Computers Cells: 12 Cells Volts: 14.8V Capacity: 6600mAh; 97Wh