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Another Trailer Wiring Question.

 
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Old 03-27-2018, 10:34 AM   #1
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Another Trailer Wiring Question.


Greetings all.

Just got a 16' flatbed trailer to haul some things. It has brakes and the small sealed battery for the breakaway. The wiring is missing. I want to do a 7-pin.

The question is charging the small battery. Does it charge off the truck thru the 7-pin? Or do I need some type of charger?

Thanks for the help.
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Old 03-27-2018, 11:00 AM   #2
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Re: Another Trailer Wiring Question.


It charges off the seven pin.
On the dump trailer we have a small solar charger/maintainer so the 12v batt for the ram is always charged, we also have a lock box for the keys to the tongue lock.

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Old 03-27-2018, 07:51 PM   #3
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Re: Another Trailer Wiring Question.




This is the rv style connector, the commercial connector (round pins) is different.

Wire it up right, put a junction box in and run the main lead to it, run the lights, brakes etc. off of the junction box. Solder and heat shrink all connections.

Done right, you only have to do it once.
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Old 03-28-2018, 06:31 PM   #4
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Re: Another Trailer Wiring Question.


Convert to led lights if it isn't already. Less than $30.
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Old 03-29-2018, 07:13 AM   #5
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Re: Another Trailer Wiring Question.


Thanks everyone. It was nice out yesterday so After getting everyone going I went to the shop to wire it.
At some point someone had re-wired the trailer and didn't have a clue about different colored wires. Spent more time trying to figure our what each wire was then actually making connections. Got finished in the afternoon. Happy with the way it now works.

Thanks again.
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Old 03-29-2018, 08:36 AM   #6
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Re: Another Trailer Wiring Question.


Quote:
Originally Posted by Bad Boy Biker View Post
Thanks everyone. It was nice out yesterday so After getting everyone going I went to the shop to wire it.
At some point someone had re-wired the trailer and didn't have a clue about different colored wires. Spent more time trying to figure our what each wire was then actually making connections. Got finished in the afternoon. Happy with the way it now works.

Thanks again.
Electricity is color blind. All that matters is that it works. Several of my trailers are wired with gray electrical substation control wiring.

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