Hipower Laptop Battery For Acer AS5538-1672/AB Laptop Notebook Computers Battery Cells: 9 Cells Volts: 11.1V Battery Capacity: 6600mAh; 73Wh Item Type: This item is an extended capacity 9 cell battery. This battery is physically larger than batteries with fewer cells. Please compare the specs to determine if this battery will be larger than your original. Item Size: 10.61in X 1.69in X 0.93in (270mm X 43mm X 24mm)