12VDC Harwin Pin Style Connector Cable

I have a Harwon type 6 pin female to female cable to connect the controller to the stepper motor.   What I am still trying to find is a cable that let's me plug into the two 12VDC pins on that cable and connect the other end to a battery source.  I will likely a 9V battery pack to see if this enough power for my application.   Is there some magic dimensions that identify it as compatible with the Harwin cable pin spacing?