Skip to Content

DIY Solar Wiring Diagrams for Campers, Vans & RVs

Affiliate Disclaimer: As an Amazon Associate, earns from qualifying purchases.

Need Printable/Downloadable Camper Wiring Diagrams? Click Here
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:

200 Amp Hour - 300 Watt Camper Van Solar Kit
Subaru Crosstrek Bigger Snow Tire Upgrade

Leo Duran

Wednesday 5th of May 2021

Hi Nate,

Your wiring diagrams are showing a connection from an Input of Lynx Distributor to the Inverter/Charger... Is that correct?

Instead, I'd expect the Inverter/Charger to be connected to the Battery (Output) terminal of the Lynx Distributor.

Thanks for all of the helpful information you're providing.



Friday 30th of April 2021

Good day. I bought 5000w inverter and 6 solar panels 450W. Batteries I'm going to use 4 255Amps How much Amps fuse for solar panels that I have to use

Kelsea Anderson

Thursday 29th of April 2021

Is there a link to the breaker box shown that includes DC fuses and AC breakers?


Wednesday 28th of April 2021

I just noticed that your 30A OEM RV Solar Retrofit Wiring Diagram is the only version that omits a master disconnect, is there a specific reason for this? Any issue with adding one to that particular layout?


Wednesday 28th of April 2021

Nate, Which wiring diagram would best fit my equipment listed below? I have it all connected and everything appears to be working fine. I had an electrician friend come to check things out before we turned it on. I'm getting into your videos, fixing some things like my disconnect switch and I want to keep learning and be sure it is done right. My main confusion is the existing transfer switch and how I change the wiring there and get it to the Multi-plus inverter/charger. Do I need to add an additional transfer switch? Now when I am on shore power, I have to turn the inverter/charger on to get 120v.

Solar Equipment: 2 (Two)- Battle Born Batteries - 12v 100Ah LiFePO4 Charger/Inverter: Victron Multiplus 12/2000/80-50 120v Charge Controller: Victron MPPT 100/60 2 (Two) 230 Watt Solar Panels: Battle Born (Merlin) BBS230A Battery Monitor: Victron BMV 712 Smart Battery Monitor VE BUS Smart Dongle

Toy Hauler: 2021 Grand Design Momentum 21G

30 amp shore power Generator: Cumins Onan QG 4000 EVAP Model 4KY-6747R 120v / 33.3 amps / 60hz / KVA 4