How to Build a DIY Travel Trailer: 12V Electrical, lithium battery (Part 10)

Today I'm installing and touring the 12v electrical system in the DIY Travel Trailer Project. I'll cover how I made the wiring connections, setup the fuse panel, ran the circuits, lithium battery connections, led lights, 12v cooler, ventilation fan and lots of other little things here and there.
Up next in the project will be installing the solar panels which will bring the project to a usable point to take it camping. There will still be lots of side projects for the travel trailer, like a slide out kitchen, awning, bath cabinet, etc,.... But until those projects get under way it should be more camping and using it than watching it get built ;)

Thanks for watching and please let me know if you have any questions! - Joe

Young by Chris Coral
via Epidemic Sound (license/subscription via partnership with Studio71)

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Homesteadonomics

HC 70 Box 4770

Sahuarita AZ 85629

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Tags: homesteadonomics, travel trailer, teardrop trailer, rv power, led lights, rv lights, dometic, 12v cooler, trailer build, lithium battery, lithium iron phosphate, 12v lights, 12v fan, voltmeter,

[WhiteFox]

I like your grounding system overall, but it can be improved by making 2 changes. After you clear the paint to establish the ground, use a star washer between the ground wire and the ground, and then tighten the screw. After your ground is established, repaint the area including the grounding screw to prevent corrosion. Back in the late '60s, I worked for Boeing in their commercial airplane division, both as an Assembler/installer and later as a Quality Control inspector. The grounding method I discussed is how grounds were established on every airplane Boeing built. I had the pleasure of working on several aircraft models, including, 727, 702, 720b, 737, and a little bit of what was referred to as the Iron Bird model of the early 747. All that it consisted of were the control systems, for testing. Now I know that your trailer will never be called upon to leave the ground, it WILL be traveling over many different corrosive products...

[bobamos]

As a retired automotive electrical specialist I just love seeing an electrical system that is properly done and done cleanly. You did a wonderful job...

[brandonaga]

Note the detail at 7:08. See how the screws are all oriented the same direction? That shows the level of craftsmanship in this build! Great job👍👍👍👍🇺🇸🇺🇸🇺🇸🇺🇸

[notorioustinman]

I have owned four different styles of travel trailers and two motorhomes. Not one of them compare to the quality, fit, and finish of your project. If only YOUR workmanship, were the industry standard. Well done indeed!

[larryb]

Love how neat the wiring is. Not the typical birds nests you see on these videos.

[StMyles]

A cup of coffee and ham sandwich, with your video to watch after cutting my yard. Feel like I’m on paradise. Incredible, project and build thanks for sharing the details.

[cleokey]

Nicely done, both video and electrical work. Tip I learned as an apprentice: when using electrical tape, tape going away from your body and the tape will remain tight and seal better.

[hammer]

Great video. As for "Industry Standards", I think you would find that few "factory builders" do half as
well.

[adensmith]

This is one of the most compete wiring videos on youtube thank you. Most of the videos talks about cutting holes and making connections. Grounding, securing wires is so looked over. Again thank you for taking the time it really helps fill in some of the gaps.

[andrewpoellnitz]

I appreciate this video. Not what I thought I was looking for, but you finally showed me how to distribute the power on an overland battery box/rig. Thanks so much.

[tbpc]

That is beautiful, meticulous, and excellent functionality! You continue to amaze me with your well thought out attention to details. Thank you so much for this video.

[michaelroberson]

Loved the "Song of the Cicadas" in the background.

[ZeroEntropy.]

Awesome job! The marine breakers work really well between the panels and mppt as they work like a breaker and a switch.

[EASTSIDERIDER]

This is the cleanest shop I’ve ever seen.

[CarlosGarcia-lshn]

That was a beautiful job of the wiring system in the battery compartment. Everything is nice and neat and labeled. Just the way I like it. Good Job!!

[hartk]

A tip I've learned when it comes to using the spade connectors, if the wires arent easily distinguished like the fan one instead of having the big red tape what I've done is make the wires from the battery side have a female for the negative and male for the positive, that way you can't mix them up if that makes sense

[sferg]

Nice workmanship.  Good to see someone take the necessary time to do it right.

[markrjones]

Love it Joe. Getting close to time to take the family out and do a test camping trip.

[jefffroman]

Thanks for sharing. Your explanation makes the project seem doable.

[randycook]

Beautiful, clean and neat. Great job on the wiring. Doing it right the first time.