Runpower Replacement Laptop Battery for Dell Latitude E5420 E5430 E5530 E6420 E6430 E6520 E6530 Series [9Cells 11.1V 6600mAh] Battery Type: Li- ion; Capacity: 6600mAh; 9 Cell Voltage: 11.1V; 100% brand New from Manufacturer: Up to 500 recharge cycles over the life of the battery. Superior Quality Assurance: Grade A cells ensure fast charges and low power consumption Built-in circuit protection ensures both safety and stability. CE-/FCC-/RoHS-Certified for safety:12 Months Warranty, 30 days money return guarantee; 24 x 7 email support.