Key Power Laptop Battery for (Dell Latitude E5420 E5430 E5530 E6420 E6520 E6530) Inspiron 4420 5420 5425 7420 7520 4720 5720 7720 M421R M521R N4420 N4720 N5420 N5720 N7420 N7720 Vostro 3460 3560 Battery type: Li-ion; Capacity: 60WH; Cells: 6-cell; Voltage: 11.1V. Battery life: 100% New from Manufacturer. Up to 600 recharge cycles over the life of the battery. Compatibility: EXACT 1:1 Ratio capacity same as Dell OEM batteries. Safety: CE-/FCC-/RoHS-Certified for safety. Grade A cells ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and stability. Warranty: 18 month hassle-free warranty.