Go to Amazon Sites : br br PowerSmart? 6 Cell 49Wh Laptop battery for Dell Inspiron 13ZN311z Inspiron 14ZN411z Vostro br br Remarks The brand PowerSmart is our exclusive registered trademark products trademarked PowerSmart are marketed and sold exclusively by power198 br Battery Type Lithium-ion Li-ion Voltage 1110V Capacity 4400mAh Color Black br Dimension 26930 x 4870 x 3010 mm Rate 4900 Wh No of cell 6 Weight 37880 g br Product Type Replacement Battery Brand New Condition New 1 year warranty br Please ensure the products that you are going to buy fits the brand model part number and dimension mentioned above of your device