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DIY Solar Wiring Diagrams for Campers, Vans & RVs

DIY Solar Wiring Diagrams for Campers, Vans & RVs

This blog post is an index of ALL of the DIY solar wiring diagrams for campers, vans & RVs you can find here on There are several options below to choose from. There are varying sizes of systems and this list is constantly changing and expanding to fit your needs. All of the diagrams below feature:

  • Lithium Battery Bank Storage
  • Ability to Power Devices via Shore Power
  • Ability to Charge the Battery Bank via Shore Power
  • Ability to Charge the Battery Bank via Solar Panels
  • Ability to Charge the Battery Bank via Vehicle Alternator
  • Ability to Run both 12V and 120V Appliances
  • Applications for DIY Campers, 30A OEM RVs & 50A OEM RVs

How to Best Use This Page – (Video)

This video will show you how to best use this page. Although this page is just an index of all of the wiring diagrams, it’s always helpful to have a bit of a page orientation as you are looking for the right diagram for your needs:

DIY Camper Solar Wiring Diagrams

The following diagrams will get you well on your way to getting your camper prepared for off-grid adventures. There are several diagrams below for various applications of, not only ground-up DIY campers but also OEM RV retrofits. Each of the following diagrams are high end diagrams using primarily Battle Born Lithium Batteries and Victron Energy Components. The solar array size is incredibly flexible depending on the roof space you have available. Check them out and leave any questions/comments you have in the comments section below.

Not sure what size you need? Start with a power audit here:

If you are looking for old wiring diagrams you can find those here:

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Wednesday 20th of October 2021

I love your stuff. My new solar system in my shed is still in progress. I will have 4 Renogy 12v 100Ah batteries and 3 Renogy 175w flex solar panels. Do I hook the solar panels up in parallel or series? I want to be able to run a 4.4 cuft refrigerator. the batteries must be hooked up in parallel. Is there a diagram of some sort to help me out?


Tuesday 5th of October 2021

Hey, I'm upgrading a 30A TT to run off a 48v 300Ah LiFePo4 & 2840W of solar. Victron MPPT & 3000W Inverter/Charger.

I'm struggling with wire gauges and fuses, and I feel like none of your diagrams really suits my purpose. I would join the community, but it sounds like without a diagram to reference, you're less interested in answering those questions.

Hopefully you can think of some way to help. At this stage I mostly just need the wiring and fuses figured out.

Thank you



Monday 4th of October 2021

Hi, Grreat videos, thanks!!

I don't see creation dates for any of your diagrams, do you update them when new and improved products are released by Victron?

Glen Carter

Friday 1st of October 2021

If I were considering 4-440W solar panels (LG Neon R), I assume I am better off with 4- MPPT 100/50 (~$1300) than 2- MPPT 150/85 (~$1400)? Part of concern is partial panel shading and with 4 MPPT reduction in performance is by panel and not entire series array.

Anything I am overlooking?


Andrew Moore

Friday 1st of October 2021

I have just purchased a wiring diagram in support of all the great content you have. Unfortunately I was prompted “something repeatedly went wrong” and I have nothing to show for it. Yes the money was taken from my cc & no I have not received any email. Please help