SLE 14.8V 40WH M5Y1k Battery for Dell Inspiron 3451 3551 5558 5758 M5Y1K Vostro 3458 3558 Inspiron 14 15 3000 Series Battery Type: Li-ion, Cells: 4-cell,Capacity: 2600mAh; Voltage: 14.8V.NOTE:IT NOT Compatible Dell Inspiron 15-5551 Grade A Li-Polymer cells mitigate the risk of battery leakage and maximize output stability. Built-in circuit protection enhances safety of usage and extends battery life. Model : M5Y1K ,Compatible Number: Dell Inspiron 14-5455 14-5459 15-3552 15-5555 15-5559 15-5758 ,Inspiron 3451 3551 5558 5758 M5Y1K GXVJ3 HD4J0 K185W WKRJ2 Vostro 3458 3558 Inspiron 14 15 3000 Series One Year Warranty and 30 days money return guarantee, Our Brand, SLE-TECH has been registered in US Intellectual Property Office USPTO: Reg.No.5,222,566;Any unauthorized seller will be report to Amazon and potentially take legal action by SLE-TECHeller will be report to Amazon and potentially take legal action by SLE-TECH