Gauge of Wire for Using as Charge Wire for Trailer Battery

Question

Question:

My trailer connector needs a wire from the battery to connect and charge the trailer battery. Its a Scamp trailer. What wire gauge should I use? 10 AWG? What fuse should I use? Thanks.

asked by: Michael J

0

Expert Reply:

For charging a trailer battery you want to go with as thick of wire as you can. 10 gauge would be ideal. We sell 10 gauge wire by the foot with part # 10-1-1.

Typically a 40 amp breaker like part # 9510 is used.

expert reply by: Jameson C

0

Answer 1

To install the Draw Tite hitch part #65022 on your 1999 Ford F-350 you will need a 3/4 inch wrench, a 15 mm wrench, an 18 mm wrench, and a 5/8 inch drill bit. Check out the install video I attached for more info on the install as well.

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Answer 2

The wire that runs from the vehicle's battery to the 7-way trailer connector and then from the 7-way trailer connector to the trailer battery should be at least a 10 gauge. If you don't have any 10 gauge wire you can purchase part…

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Answer 3

The correct way to wire up the breaker that comes with the Roadmaster charge line kit part #RM-156-25 is to have the copper post ran to the positive post of the battery that is charging the other vehicle and the silver side to the battery that is…

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Answer 4

You can put a maintenance charge on your trailer battery with the 12 volt accessory circuit of the 7-way. The 1:00 position of your 7-way carries this circuit. You would just need to run a length of 10 gauge wire like part #10-1-1 (sold by the…

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Answer 5

The best way to power the interior lights in your trailer is with its own independent battery. You will not want to use the breakaway battery. The breakaway battery is only designed to operate the breakaway and will drain extremely quickly,…

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Answer 6

Typically people will let the breakaway battery run the breakaway system and then would use the accessory battery to power the interior lights etc. This tends to work the best since your breakaway battery needs to always be charged and interior…

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Answer 7

We have a online diagram that will help you understand how the break away system is wired into your trailer. It is actually a simple installation. The system splices into the existing trailer wiring. The break away box will have 3 wires coming out of…

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Answer 8

You are correct in your description of how to wire in a new auxiliary battery in your enclosed trailer. You will take the 7-Way's 12V power feed and route this to the positive terminal on the auxiliary battery, and you will ground the second…

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Answer 9

It sounds like the tilt battery is backfeeding onto the breakaway battery charge line so as long as the ground is connecting it is taking a charge from the tilt battery and that is why your charge light is staying on. I have a solution for you, you…

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Answer 10

So the right way for you to do this will depend on how often you're going to use the lights and how many of them there are. If a trailer isn't equipped with a battery, the interior lighting is frequently tied into the running lamp circuit.…

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Answer 11

To charge your trailer battery when you look at the 7-way trailer-side connector the 11 o'clock pin will mate up to your 12V signal from your vehicle. With most trailer connectors like #H20043 this will be the black wire. That black wire simply…

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Answer 12

The only way you could power interior dome lights on a trailer without it being connected to a tow vehicle would be to power the lights with a battery like a breakaway battery. How you choose to wire up the batteries will in the end be up to you, but…

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Gauge of Wire for Using as Charge Wire for Trailer Battery

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