NEW GENUINE ASUS AS-G72GX 70-NFU1B1100Z 8-Cell 14.8V 5200mAh 73Whr Lithium-ION Li-ION Notebook Laptop Battery Black 8-Cell Lithium-ION Battery 14.8V 5200mAh 73Whr Compatible Models: F70SL, G71, G71G, G71Gx, G72Gx, N70Sv, M70 Compatible Models: M70Sa, M70Vm, M70Vn, N90, N90Sv Compatible Models: X71SL, X71Vn