CWK High Performance Replacement Battery for 501114-001 458274-341 HSTNN-OB60 HSTNN-LB60 Laptop Battery 8-cell 5200mAh (4400mAh compatible) for HP EliteBook 8530p 8530w 8540w 8730p 8730w Series NoteBook PCs (KU533AA) 24 Months warranty Condition: Brand New - Grade A cells Battery Type: Li-ion Voltage: 14.8 Volt (14.4 Volt compatible) Capacity: 5200mAh (Better than 4400mAh) 90 Day Money Back. Buy with confidence!