Know your gear
The 226-340-004 - Cable Assy, V-Dock Pwr with Ferrite RoHS was designed specifically to have connectors on either end. One is a two pin connector and the other is a 4 pin connector. The reason is that a single cable/part number could be used for either a two pin input DC/DC converter or a 4 pin input DC/DC converter and the other end of the cable can just be cut off and the wires spliced into the battery connection.