FGY&reg; 9 Cell 7200mah Lithium-ion Laptop Battery for Dell Inspiron 1520 1721 1521 1720 530S Brand:FGY ;12 Months Warranty! ;30 Days Money Back Guarantee Battery type: Li-ion; Capacity: 7200mAh ; Cells: 9 cell; Voltage: 11.1V Package indluded:One laptop battery (in strong box)