Skip to Content

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:

Need Personalized Help? Join my private group today:


Friday 20th of May 2022

I love it. Learning a lot. Taking a lot of notes to prepare my RV camper by the beach in Puerto Rico. Plenty sunlight, so, I will take advantage of that. On how to solar power my RV camper. Thanks a lot, Very helpfull.


Monday 16th of May 2022

Hi Nate, I hope you can assist me. I am planning an electrical system for my motorhome build. I am looking at 2 x 300W solar panels to charge 2 x 200AH LIFEPO4 lithium batteries. Can you advise what size MPPT (100/30 or 100/50) and if the Victron MultiPlus 12/2000/80-32 230V VE. Bus Inverter/Charger is enough to run a coffee machine and a 12V air con (Dometic RTX 2000) or should I get the 3000W one. I am in Australia. Thanks in advance.

Kind regards, Benedict


Saturday 7th of May 2022

Hi Nate! I read that you Highly recommend a dual pole solar cutoff switch , but don't see any in any of the diagrams? And I wonder if I am to use one, I should install it down stream of the inline solar fuses if I was to add these as well?? Thanks so much for your help.

Nate Yarbrough

Sunday 15th of May 2022

The dual pole solar disconnect is in literally every diagram just upstream of the charge controller. This is the disconnect I'm recommending now-days:

Daphne N.

Thursday 28th of April 2022

Hello Nate, Thanks for this amazing resource! We are starting from scratch, building out a new "mini" camper van (Mercedes Metris) for weekend/week long trips. We believe we can skip the inverter for now (although we may add it later) but definitely want all the charging options (shore, alternator and solar) and we'd like 2 separate solar inputs (roof-mounted and portable panels from the ground). Can you recommend a diagram that would work for this application? Thanks, Daphne

Nate Yarbrough

Sunday 15th of May 2022

Sounds cool! I don't have any diagrams without an inverter.


Thursday 21st of April 2022

Nate, I have an RV with existing shore power battery recharging and AC power ability as well as battery recharging from the engine. I want to add a few solar panels, to increase my off shore available power. But I am not sure which, if any of your diagrams will help me... ? What have I missed?