Hiport 6 Cell Laptop Battery For Twinhead Durabook R15, R15D, R15D2, R15B, R15G, R15GN Laptop Notebook Computers Cells: 6 Cells Volts: 11.1V Capacity: 4400mAh; 49Wh Dimensions: 7.95in X 2.52in X 0.87in (202mm X 64mm X 22mm)