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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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V. Tom Doria

Friday 17th of June 2022

Hello Nate: I am considering purchasing three solar panels that are bifacial with a watt rating of 445W each and a VOC of 48.9v per panel. My MPPT charge controller has a max voltage input rating of 145v so can I wire these three (3) panels in series and parallel and keep the voltage below 145v and do you have an example of this panel wiring online to which I can refer? Thanks, Tom


Thursday 16th of June 2022

Hello Nate, I wired my setup based on Andy's Airstream 30A OEM build. My question is I would like to have the option to hookup to 50A shore if needed to alleviate a power squeeze in areas where I would run the AC way more. I would not need to power any 240 equip, just need some extra power when there is simply 30A and 50A to choose from. I understand the Multiplus 12/ 3000/120-50 can be wired for 50A. What would I need to change in my setup to accommodate? Much appreciated,Thank you!!

Ricki Glander

Friday 3rd of June 2022

Hi Nate, Love your stuff. I’m working on a budget system already in and I’m trying to upgrade, I’ve got 4x 180w panels and 2 Epever Tracer mppt 60amp Controllers and 4 160amph lead acid batteries, 3000w inverter. Would you recommend one of your diagrams here or another? Cheers Ricki

Rodney Ditler

Thursday 2nd of June 2022

This system is most suitable for systems that do have a pre-existing house electrical system installed. What do you mean by this statement? I want to do the 30 amp for my rv. Which has factory installed 110v outlets.


Monday 30th of May 2022

Hi Nate! Just found your youtube channel today and love the thorough videos you do. I want to convert my 1987 VW Westfalia to solar and wanted to know what diagram is the closest example of a converting an existing "RV" electrical system to Solar? Thank you very Much!