BuyBatts Battery Fits Dell Latitude E4310, P05G, 312-9955, 0FX8X, 8N884, 8R135, H979H, MY993, R3026; 312-9957, U817P Notebook Laptop Portable Computer Dimensions: 8.24in X 2.41in X 0.88in (209mm X 61mm X 22mm) Capacity Rating: 4400mAh; 48Wh Voltage: 11.1V Battery Cells: 6 Cells