PowerSmart 6 Cell 49Wh Laptop battery for Dell Inspiron 13Z/N311z, Inspiron 14Z/N411z, Vostro V131 V131D V131R laptop 268X5, 312-1257, 312-1258, H2XW1, JD41Y, N2DN5 Remarks: The brand " PowerSmart" is our exclusive registered trademark, products trademarked " PowerSmart" are marketed and sold exclusively by power198. Battery Type: Lithium-ion (Li-ion) Voltage: 11.10V Capacity: 4400mAh Color: Black Dimension: 269.30 x 48.70 x 30.10 mm || Rate: 49.00 Wh No. of cell: 6 Weight: 378.80 g Product Type: Replacement Battery (Brand New) Condition: New, 1 year warranty! Please ensure the product(s) that you are going to buy fits the brand, model, part number and dimension (mentioned above) of your device.