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Message: <blockquote data-quote="okietool" data-source="post: 1345139" data-attributes="member: 6030"><p>I just put a Super Winch on my car hauler, my thought for powering it was to mount a 12 car battery on the trailer by the winch. It is a new trailer with the little 12v battery that sets the brakes when the trailer comes off the hitch (or the switch trips). What I am wondering is if I can substitute the car battery for the little battery without frying the wiring harness on the tow vehicle when I start using the winch. I thought the voltage through the harness would keep the charge up on the battery, but, I'm worried that when I start using the winch, it will draw too much amperage through the harness in the vehicle.</p></blockquote><p></p>