Need suggestion for trailer wiring
I've tried running a search and have looked back about 8 months but can't find a thread addressing this. How would you suggest charging a TC house battery with the 7 pin connected to a cargo trailer ?
Forum Discussion
So, your question was that you have a 7-pin on the truck (all wired correctly with 12 volts at the #4 pin) and your cargo trailer has a flat-4 plug?
The adapter will work, should work. Make sure you have the 12 volt wire on the flat-4 actually going to the battery and that the fuse is good. **oops, no charging voltage in a flat-4** edit.
To get a better charge, if needed, to the trailer battery you can run a second plug using a 2-pole (or even a 1-pole) plug and socket using much heavier gauge wire than the little plugs offer.
I run a 2-pole with positive and ground as the two with finger-sized wire. I run that off of the starter motor 12+ connection (it is closer than the battery/alternator and not being used while driving otherwise). On top of that it is controlled via a solenoid that I can turn on or off at the dash.
The adapter will work, should work. Make sure you have the 12 volt wire on the flat-4 actually going to the battery and that the fuse is good. **oops, no charging voltage in a flat-4** edit.
To get a better charge, if needed, to the trailer battery you can run a second plug using a 2-pole (or even a 1-pole) plug and socket using much heavier gauge wire than the little plugs offer.
I run a 2-pole with positive and ground as the two with finger-sized wire. I run that off of the starter motor 12+ connection (it is closer than the battery/alternator and not being used while driving otherwise). On top of that it is controlled via a solenoid that I can turn on or off at the dash.
