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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:

Need Personalized Help? Join my private group today:


Tuesday 20th of September 2022

Thanks for the great resources! But for the shore plug, is the wire 10/3, or 10/2? I am wiring my shore plug, and bought the 10/3 in the diagram, but can't figure out what the 4th wire is for. And for the 6/3, is it the same situation? Just a little confused. Thanks!


Monday 5th of September 2022

Hello, I am currently building a 24V system in a Dodge Ram 3500 however I do not notice you have any specific diagrams for a 24v system. Is there a way you could review my diagram? Do you offer consults? I attempted to join the private group but it wasn’t available. Willing to pay for assistance. Im also wondering what your thoughts are when it comes to charging the “house” batteries by alternator. Do you suggest a secondary alternator or would a 12-24 dc isolator convert work? Im afraid of burning out and ruining my cars alrernator.

Thank you Missy


Friday 2nd of September 2022

Hello from the UK. Great resource both here and YouTube, thanks so much for for your efforts, your videos etc. are a superb resource and clearly a lot of effort goes into them. I have to ask, and apologies if I look stupid, but the one bit I struggle with is your fuse sizing at your +ve busbar (or Lynx Distributor often in your case). For example, feeding your 12V distribution panel is a 6AWG cable (roughly 60AMP cable capacity I believe), but the fuse is a 100AMP Mega Fuse (which if a Victron one would not actually blow until about 250AMP), so how does that protect the cable? Would the cable not just set on fire before the fuse had a chance to blow, so theoretically once the current exceeds the 60AMP cable capacity? I feel I've missed something obvious here, but happy to take the embarrassment to understand this better. Thanks again

Beni Ros

Thursday 1st of September 2022


What would be the losses in a solar PV (%) - as a rule of thumb Say you have 1kW of pv installed and produces 1kWh of DC in 1 hour. And you also have a 12V 100Ah battery (2kWh) How much of that you end up using in a 220V appliance Taking in consideration wire losses, battery losses in charging and discharging, inverter losses etc.

Is there a quick rule of thumb? I'm thinking in terms of knowing my 220V load, how much extra solar pv do I need to cover all the losses and have my needed out put at the appliance

Say, I have a 300W load @ 220V How much PV do I need installed And let's take a scenario for 1 hr only It would definitely more than a 300W solar panel? But how much more? And I wouldn't like to go in deep calculations if possible, more a percentage increase in solar PV size

I appreciate all your time and input to help community



Tuesday 23rd of August 2022

Hi Nate, I have a 3000w aims inverter that was given to me, I bought 4 200ah chins lithium batteries. Would you be able to draw up a wiring diagram that would work best for what I'm working with so I know what I still need to purchase? I've purchased your wiring diagram for campervan, and airstream wiring but I believe these wont work for me. Your awesome at what you do and thanks for any input you have!!!