BuyBatts Battery Fits Acer Aspire One 722-0472, AO722-0472, 722-0473, AO722-0473, 722-0474, AO722-0474, 722-0652, AO722-0652, 722-0825, AO722-0825, 722-0828, AO722-0828, 722-0879, AO722-0879, 722-BZ197, AO722-BZ197, 722-BZ454, AO722-BZ454, 722-BZ491, AO722-BZ491, D257 Notebook Laptop Portable Computer (Black) Item Dimensions: 8.01in X 2.34in X 1.12in (204mm X 60mm X 28mm) Battery Capacity: 4400mAh; 49Wh Voltage: 11.1V Battery Cells: 6 Cells