youd have to splice it. ive seen one like that here in STL.
its more of a hassle then its worth honostly. as you have to run the wire from the gearbox to the peq, splice it, then back around the gearbox, out the back, and to the club foot.
would be easier to just carry a spare battery for the crane OR get a second cheapy peq and battery. and use thumb screws.