CSEXCEL High Performance [8-cells 5200mAh/77Wh] Replacement Battery for KU533AA 493976-001 for HP EliteBook 8530 8730w 8730p 8530p 8530w 8540w Series Laptop Notebook Computer PCs (8530) Battery type: Li-ion; Capacity: 5200mAh/77WH; Cells: 8-cell; Voltage: 14.8V. 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.