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Solar Panel Wiring Diagrams For Camper Vans & RVs (Free PDF)

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Complete solar wiring diagram for camper vans for up to 440W of solar

In this post, we share all of our popular solar panel wiring diagrams for camper vans and RVs. Here you will find unique and custom sized solar diagrams to meet most standard solar array sizes (up to 700W).

These diagrams will show you how to connect multiple solar panels together, recommended battery sizes, and what sizes you’ll need for your wires, charge controller, and fuses/breakers.

If you already know the size of your solar panel array, you can skip down to your correct solar wiring diagram using the links below:

  • 0-220W
  • 220-440W
  • 440-700W

If you’re unsure, use our solar size calculator to help you finalize the total wattage you need.

For offline reading, we recommend downloading our free solar wiring PDF.

Table of Contents
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    Free Solar Wiring Diagrams PDF

    The quickest and easiest way to access our detailed solar panel wiring diagrams is to download our free PDF below. This eBook includes a portfolio of diagrams for small, medium, and large solar systems.

    Free Download
    Solar Wiring eBook For Camper Van Conversions

    From the solar panels, to charge controller, to the batteries, and everything in-between, this eBook has you covered. 12+ pages of detailed diagrams, product recommendations, and links to additional resources.

    *Our eBooks have been known to lower stress & blood pressure.

    Also included are unique product recommendations for each size solar system, tool lists, and links to our post to help you properly size your system. This PDF is our most popular eBook, and for lots of great reasons.

    And best of all, this PDF for free. We don’t charge for these diagrams (though a small donation is always welcome) and we don’t want your email address.

    Note: This eBook only provides diagrams related to solar systems. For more complete electrical system information, view our full electrical wiring diagrams.

    Small Solar Wiring Diagram (0-220W)

    At only 0-220W of solar, this wiring diagram is intended for small camper vans or DIY home systems. This is a budget-friendly solar system, but will comfortably sustain someone’s modest electrical needs.

    Solar System Specs

    • Array size: 0-220W
    • Charge controller: 15A
    • Lithium battery: 100-200Ah (12V)
    • Inverter: 1000W

    What You Can Power

    • LED lights
    • Smartphone
    • Vent fan
    • Water pump
    • Laptop
    • Small blender

    Wiring Diagram
    (Small System)

    Below is our recommended solar wiring diagram for small camper vans & homes. Note the listed sizes for electrical wire, fuses, breakers, and charge controller.

    Solar wiring diagram for small systems with max 220W solar array
    Solar wiring diagram for small systems (max 220W)

    Note: All our solar panel wiring diagrams have solar panels wired in series, which simplifies the installation. For more information, read our series vs. parallel post.

    Material List

    Medium Solar Wiring Diagram (220W-440W)

    With a solar array of 220-440W, this solar wiring diagram is intended for medium-sized camper vans or home systems. This is the solar system we personally use in our van and is robust enough to provide power to a good range of electrical products.

    Solar System Specs

    • Array size: 220-440W
    • Charge controller: 30A
    • Lithium battery: 300-400Ah (12V)
    • Inverter: 2000W

    What You Can Power

    • Everything from small system
    • Additional laptops/smartphones
    • Diesel heater
    • 12V fridge
    • Electric water kettle
    • Instant Pot or toaster oven

    Wiring Diagram
    (Medium System)

    Below is our recommended solar wiring diagram for medium camper vans & homes. Note the listed sizes for electrical wire, fuses, breakers, and charge controller.

    Solar wiring diagram for medium systems with max 4400W solar array
    Solar wiring diagram for medium systems (max 440W)

    Material List

    Medium Solar Wiring Diagram (440W-700W)

    With a solar array of 440-700W, this solar wiring diagram is intended for large-sized camper vans or home systems. This is a seriously powerful system for large camper vans and RVs and should power most everything you could want.

    Solar System Specs

    • Array size: 440-700W
    • Charge controller: 50A
    • Lithium battery: 400-600Ah (12V)
    • Inverter: 3000W

    What You Can Power

    • Everything from medium system
    • Hot water boiler tank
    • Induction stove
    • Air conditioner
    • Electric heater

    Wiring Diagram
    (Large System)

    Below is our recommended solar wiring diagram for large camper vans. Note the listed sizes for electrical wire, fuses, breakers, and charge controller.

    Camper van solar wiring diagram for a maximum of 700 Watts of solar
    Solar wiring diagram for large systems (max 700W)

    Material List

    Custom Solar System Wiring Diagrams

    If you are looking to build a solar system with specs that do not fit within the parameters of the solar wiring diagrams we provided above, send us an email and we can try to piece together a custom solar system to fit your needs.

    Or, if you want to piece together your own custom solar system, check out our detailed solar sizing posts below to help get you started.

    Lastly, you can download our other free PDF guides for electrical and plumbing systems.

    Happy building!

    Thank You For Reading!

    We’re Yuko and Eric! We both grew up in Asia ( Japan & Hong Kong ), we left our jobs and homes in 2018 and started traveling full time from Canada to Argentina in our self-converted camper van since end of May 2019. “Asobo” means “Let’s play” in Japanese. We named our site “Asobolife” because the life is always uncertain and we live only once so it’s important to always keep positive, playful mind and enjoy the moment you are in the present. We also want to use this website to share our road trip and van building experiences to inspire our readers. We hope you enjoy!

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