Lucky Store W83066LC W84066LC Brand New Battery for Dell Alienware M17 m9700 m9750 m9700i M9700I-R1 Series Laptop 14.8V 12 Cells Brand New W83066LC W84066LC 12Cells Battery Battery Type: Li-ion Cells Amount: 12-Cells Battery Voltage: 14.8V Battery Capacity: 6600mAh Total Available: 15pcs Only Fit Dell ALIENSWARE M17 R1, Alienware Aurora m9700, Alienware M17 m9700 Series Laptop