CWK New Replacement Laptop Notebook Battery for HP ProBook 6440b 6545b 6550b HSTNN-C68C HSTNN-CB69 HSTNN-XB24 HP Compaq 458640-542 482962-001 484786-001 6930p 8440P 8440W HSTNN-W42C-B 482961-001 482962-001 KU531AA HP 463310-741 463310-742 463310-761 463310-762 482961-001 HP EliteBook 463310-522 463310-541 463310-542 463310-721 463310-722 Condition: Brand New - Grade A cells Battery Type: Li-ion Voltage: 10.8 Volt (11.1 Volt compatible) Capacity: 5200mAh (Better than 4400mAh) 90 Day Money Back. Buy with confidence!