Those 7 pole RV Plugs n Connectors have a terminal labeled AUX that can be used to keep the trailer battery charged via the tow vehicles alternator while driving. Id use a 20 or 30 amp circuit breaker, depending upon wire sizes (Id likely run 10 gauge to the rear and use a 30 amp breaker), to protect that feed wire fuzed close to the tow vehicles battery, of course. When you disconenct the trailers plug youre disconencted from the tow vehicle (and its battery) of course which should suffice but if you want additional protection for the trailer battery you can install a disconenct right at its + terminal. You can disconenct the trailer plug from the truck when using the wench to prevent discharging the truck battery and/or plug back in n let the truck run to recharge the trailer battery, teh 30 amp breaker will provide some protection.
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Today's Featured Article - Tractor Profile: Farmall M - by Staff. H so that mountable implements were interchaneable. The Farmall M was most popular with large-acreage row-crop farmers. It was powered by either a high-compression gas engine or a distillate version with lower compression. Options included the Lift-All hydraulic system, a belt pulley, PTO, rubber tires, starter, lights and a swinging drawbar. It could be ordered in the high-crop, wide-front or tricycle configurations. The high-crop version was called a Model MV.
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