Sinyocell's [9 cells 10.8 V 7200 mAh] Brand New Battery for Dell Inspiron 8500 8600 D800 Laptop Colour: grey Type: Li-ion Voltage: 10.8V, Capacity: 7200mAh, Cell: 9 Warranty: 1 year. Dimension: 222.5*66.8*22.3(mm)