I'm surprised no one has mentioned how semis power trailer liftgate batteries,and,that your trailer is built without . I read below that you don't want to wire all your trucks that pull these trailers, and don't want to use battery cable.But,you are overloading your circuit:that is why you blow fuses.At the very least,if your batteries stay charged enough to run your winch and dove tail, you need to disconnect the plug while using them.A 30 amp breaker is not enough and your wiring is not heavy enough, if it is 14ga. On semis,there is a separate power cord direct from the batteries,either double pole or single pole,with single pole grounding thru trailer hitch.(Double pole is better!)This system uses a 150 amp breaker and 4 guage cable. Then on the trailer is another 150a breaker at the batteries. Yes,there are corrosion problems, but there is a spray product to spray on all terminals called Glyptol, expensive, but it works. Battery cables and connections are maintenance items:they must be checked when you pm a vehicle.You already have to keep up with the motor and solenoid terminals anyway. This system works very well,as it is the industry standard.I kinda doubt the small guage wiring of your factory plug would adequatley ever recharge your batteries without frying sooner or later,unless you barely use your winch or dove tail, and it seems the winch could get used for several minutes at a time,which would be a big amperage draw.Good luck,whatever you decide;let us know.Mark
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Today's Featured Article - My Ford Golden Jubilee - by Troy Estes. This article is about my '53 Ford Jubilee and a story that starts with taking the tractor to my brother's Starter/Alternator Rebuilding shop for a wiring fix. The generator was shot as well as all the wiring. I dropped off the tractor expecting a transformation from a 6 volt to a 12 volt system utilizing the original generator housing, and a total rewiring of the whole tractor. The front end center pin bushing was worn also so I ask that they replace it if they had time. Well, that’s wha
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