BRTONG New Laptop Battery [Li-ion 6-cell 5200mAh/58Wh] for ASUS A32-F82, F82, F83S, K40, K40E, K6C11, F52, K50, K51, K60, K61, P50, P81, K70, X65, X70, X5D, X5E, X5C, X5J, X8B, X8D - 12 Months Warranty Battery type: Li-ion; Capacity: 5200mAh/58WH; Cells: 6-cell; Voltage: 11.1V. 100% New from Manufacturer. Up to 500 recharge cycles over the life of the battery. CE-/FCC-/RoHS-Certified for safety. 24 x 7 email support,12-month hassle-free warranty. Grade A cells ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and stability. Operation time: the actual operation time will depend on how much electricity is required by the device and how you use it.