Warranty:
HP EliteBook 840 Notebook PC and HP ZBook 14 Mobile Workstation
7.4 - 4.5 mm DC wrench Charge and keep your HP Long Life CO06XL Battery ready with the HP Dongle from 7.4 mm to 4.5.Simply plug one end of the dongle into the HP EliteBook 840 Notebook or HP ZBook 14 Mobile Workstation, and the other end into the HP CO06XL Long Life Battery. Eliminating the need for separate power cables, the user can use the 7.4mm to 4.5mm power cable adapter.