200 Amp Hour – 350 Watt Camper Van Solar Kit

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This DIY Camper Van Solar Kit features 350 watts of solar (2x175w Panels) and 200 Amp Hours of Lithium Batteries wired into a 12v battery bank. It also features a 2000w Inverter/Charger and alternator charging by way of a battery isolator.

Looking for a different size of system? Check here: https://www.explorist.life/solarwiringdiagrams

Not sure how big of a system you need? You need to do a power audit. Here’s a tutorial: https://www.explorist.life/what-size-of-solar-system-is-needed-to-power-a-camper/

Want more solar education in general? Check this: https://www.explorist.life/diy-campervan-solar

Want a high-resolution wiring diagram to print out? Get it here: COMING SOON

Here is a video that shows how this page works:

200Ah Lithium Battery Bank – 2x175W Solar – 2kW Inverter/Charger – Li-BIM Alternator Charging
EXPLORIST.life / Battle Born Solar Bundle [Affiliate Link]175W Solar Panels [Affiliate Link]50A ANL Fuse [Affiliate Link]Roof Entry Gland [Affiliate Link]100A ANL Fuse [Affiliate Link]250A ANL Fuse [Affiliate Link]250A ANL Fuse [Affiliate Link]15A Solar Disconnect [Affiliate Link]Master Battery Disconnect Switch [Affiliate Link]Exterior Shore Power Outlet [Affiliate Link]250A Terminal Fuse [Affiliate Link]300A Terminal Fuse [Affiliate Link]30 A Shore Power Cord [Affiliate Link]2/0 x 5/16 Wire Lug2/0 x 5/16 Wire Lug2/0 x 5/16 Wire Lug2/0 x 5/16 Wire Lug2/0 x 5/16 Wire Lug2/0 x 5/16 Wire Lug2/0 x 5/16 Wire Lug2/0 x 5/16 Wire Lug2/0 x 5/16 Wire Lug2/0 x 5/16 Wire Lug2/0 x 5/16 Wire Lug2/0 x 5/16 Wire Lug2/0 x 5/16 Wire Lug2/0 x 5/16 Wire Lug2/0 x 5/16 Wire Lug2/0 x 5/16 Wire Lug2/0 x 5/16 Wire Lug2/0 x 5/16 Wire Lug8 AWG x 5/16 Wire Lug6 AWG x 5/16 Wire Lug8 AWG x 5/16 Wire Lug8 AWG x 5/16 Wire Lug6 AWG x 5/16 Wire Lug8 AWG x 5/16 Wire LugTutorial: How to Wire the Li-BIM Battery IsolatorTutorial: How to Wire the AC Side of Your Electrical SystemTutorial: How to Wire for Shore PowerTutorial: How to Wire a Battery BankTutorial: How to Wire a BusbarTutorial: How To Wire DC Distribution Block & AccessoriesTutorial: How to wire a power distribution panel

EXPLORIST.life / Battle Born Solar Bundle [Affiliate Link]

Battery, Inverter, Charge Controller, Battery Monitor Discount Bundle Coming June 1.

175W Solar Panels [Affiliate Link]

50A ANL Fuse [Affiliate Link]

Roof Entry Gland [Affiliate Link]

100A ANL Fuse [Affiliate Link]

250A ANL Fuse [Affiliate Link]

250A ANL Fuse [Affiliate Link]

15A Solar Disconnect [Affiliate Link]

Master Battery Disconnect Switch [Affiliate Link]

Exterior Shore Power Outlet [Affiliate Link]

250A Terminal Fuse [Affiliate Link]

300A Terminal Fuse [Affiliate Link]

30 A Shore Power Cord [Affiliate Link]

2/0 x 5/16 Wire Lug

Total wire lug quantities for this wiring diagram are totaled at the bottom of the shopping list below.

2/0 x 5/16 Wire Lug

Total wire lug quantities for this wiring diagram are totaled at the bottom of the shopping list below.

2/0 x 5/16 Wire Lug

Total wire lug quantities for this wiring diagram are totaled at the bottom of the shopping list below.

2/0 x 5/16 Wire Lug

Total wire lug quantities for this wiring diagram are totaled at the bottom of the shopping list below.

2/0 x 5/16 Wire Lug

Total wire lug quantities for this wiring diagram are totaled at the bottom of the shopping list below.

2/0 x 5/16 Wire Lug

Total wire lug quantities for this wiring diagram are totaled at the bottom of the shopping list below.

2/0 x 5/16 Wire Lug

Total wire lug quantities for this wiring diagram are totaled at the bottom of the shopping list below.

2/0 x 5/16 Wire Lug

Total wire lug quantities for this wiring diagram are totaled at the bottom of the shopping list below.

2/0 x 5/16 Wire Lug

Total wire lug quantities for this wiring diagram are totaled at the bottom of the shopping list below.

2/0 x 5/16 Wire Lug

Total wire lug quantities for this wiring diagram are totaled at the bottom of the shopping list below.

2/0 x 5/16 Wire Lug

Total wire lug quantities for this wiring diagram are totaled at the bottom of the shopping list below.

2/0 x 5/16 Wire Lug

Total wire lug quantities for this wiring diagram are totaled at the bottom of the shopping list below.

2/0 x 5/16 Wire Lug

Total wire lug quantities for this wiring diagram are totaled at the bottom of the shopping list below.

2/0 x 5/16 Wire Lug

Total wire lug quantities for this wiring diagram are totaled at the bottom of the shopping list below.

2/0 x 5/16 Wire Lug

Total wire lug quantities for this wiring diagram are totaled at the bottom of the shopping list below.

2/0 x 5/16 Wire Lug

Total wire lug quantities for this wiring diagram are totaled at the bottom of the shopping list below.

2/0 x 5/16 Wire Lug

Total wire lug quantities for this wiring diagram are totaled at the bottom of the shopping list below.

2/0 x 5/16 Wire Lug

Total wire lug quantities for this wiring diagram are totaled at the bottom of the shopping list below.

8 AWG x 5/16 Wire Lug

Total wire lug quantities for this wiring diagram are totaled at the bottom of the shopping list below.

6 AWG x 5/16 Wire Lug

Total wire lug quantities for this wiring diagram are totaled at the bottom of the shopping list below.

8 AWG x 5/16 Wire Lug

Total wire lug quantities for this wiring diagram are totaled at the bottom of the shopping list below.

8 AWG x 5/16 Wire Lug

Total wire lug quantities for this wiring diagram are totaled at the bottom of the shopping list below.

6 AWG x 5/16 Wire Lug

Total wire lug quantities for this wiring diagram are totaled at the bottom of the shopping list below.

8 AWG x 5/16 Wire Lug

Total wire lug quantities for this wiring diagram are totaled at the bottom of the shopping list below.

Tutorial: How to Wire the Li-BIM Battery Isolator

Tutorial: How to Wire the AC Side of Your Electrical System

Tutorial: How to Wire for Shore Power

Tutorial: How to Wire a Battery Bank

Tutorial: How to Wire a Busbar

Tutorial: How To Wire DC Distribution Block & Accessories

Tutorial: How to wire a power distribution panel

EXPLORIST.life Battery, Charge Controller, Inverter Bundle
Solar Charging System:
  • Qty: 2 – 175 Watt Solar Panel
    • Put these in the sun
  • Qty: 2 – Solar Panel Mounting Feet
    • Help mount solar panels to the roof
  • Qty: 1 – MC4 Connectors
    • Connecting Solar Panels to Wires going to Charge Controller
  • Qty: 40 – 10 AWG Black Wire
    • Check Wire, Lug, and Fuse List at Bottom of List
    • From Solar Panel to Charge Controller
  • Qty: 40 – 10 AWG Red Wire
    • Check Wire, Lug, and Fuse List at Bottom of List
    • From Solar Panel to Charge Controller
  • Qty: 1 – Roof Entry Gland
    • Waterproof Box for Running Wires through Roof
  • Qty: 1 – 1″ Wire Grommet
    • Mounted in roof under Roof Entry Gland
  • Qty: 1 – 15 Amp Solar Disconnect Switch
    • Mounted on Din Rail Between Solar Panels & Solar Contoller
  • Qty: 1 – Din Rail
    • To mount the Solar Disconnect Switch
  • Qty: 1 – Victron Smartsolar MPPT 150 | 35 – Bundle
    • Included in Bundle at Top of List
    • Solar Charge Controller
  • Qty: 5 – 8 AWG Black Wire
    • Check Wire, Lug, and Fuse List at Bottom of List
    • From Charge Controller to Busbar
  • Qty: 5 – 8 AWG Black Wire
    • Check Wire, Lug, and Fuse List at Bottom of List
    • Between Busbar & Charge Controller Equipment Ground
  • Qty: 5 – 8 AWG Red Wire
    • Check Wire, Lug, and Fuse List at Bottom of List
    • From Charge Controller to Busbar
  • Qty: 2 – 5/16″ x 8 AWG Lug
    • Check Wire, Lug, and Fuse List at Bottom of List
    • Attaching Positive & Negative Wires from Charge Controller to Busbar
  • Qty: 2 – 5/16″ x 8 AWG Lug
    • Check Wire, Lug, and Fuse List at Bottom of List
    • Connecting Busbar to Charge Controller Equipment Ground
  • Qty: 1 – 50 Amp ANL Fuse
    • Check Wire, Lug, and Fuse List at Bottom of List
    • On Positive Busbar Protecting Red Wire to Charge Controller
  • Qty: 1 – ANL Fuse Holder
    • Check Wire, Lug, and Fuse List at Bottom of List
    • Mounted to Busbar under each ANL fuse
CLICK HERE TO ADD ALL AMAZON PRODUCTS TO AMAZON CART

Battery Bank, Busbar, & Inverter
  • Qty: 1 – 2000W Victron MultiPlus Compact Inverter Charger 12V – Bundle
    • Included in Bundle at Top of List
    • This Converts Your 12v DC Power to 120v AC Power
  • Qty: 1 – 200Ah Battle Born Lithium Battery Bundle
    • Included in Bundle at Top of List
    • These Store Your Power
  • Qty: 4 – 2/0 Red Wire
    • Check Wire, Lug, and Fuse List at Bottom of List
    • Between Batteries & From Batteries to Busbar
  • Qty: 4 – 2/0 Black Wire
    • Check Wire, Lug, and Fuse List at Bottom of List
    • Between Batteries & From Batteries to Busbar
  • Qty: 8 – 5/16″ x 2/0 Lug
    • Check Wire, Lug, and Fuse List at Bottom of List
    • Attaching Wires to Batteries & to Busbar
  • Qty: 1 – 300 Amp Terminal Fuse
    • Check Wire, Lug, and Fuse List at Bottom of List
    • Attached to Battery Protecting Red Wire to Busbar
  • Qty: 5 – 2/0 Red Wire
    • Check Wire, Lug, and Fuse List at Bottom of List
    • Between Busbar & Inverter
  • Qty: 5 – 2/0 Black Wire
    • Check Wire, Lug, and Fuse List at Bottom of List
    • Between Busbar & Inverter
  • Qty: 5 – 2/0 Black Wire
    • Check Wire, Lug, and Fuse List at Bottom of List
    • Between Busbar & Inverter Equipment Ground
  • Qty: 5 – 2/0 Black Wire
    • Check Wire, Lug, and Fuse List at Bottom of List
    • Between Busbar & Chassis Ground
  • Qty: 2 – 5/16″ x 2/0 Lug
    • Check Wire, Lug, and Fuse List at Bottom of List
    • Attaching Positive Wire from Busbar to Inverter
  • Qty: 2 – 5/16″ x 2/0 Lug
    • Check Wire, Lug, and Fuse List at Bottom of List
    • Attaching Negative Wire from Busbar to Inverter
  • Qty: 2 – 5/16″ x 2/0 Lug
    • Check Wire, Lug, and Fuse List at Bottom of List
    • Attaching Black Wire from Negative Busbar to Inverter Equipment Ground
  • Qty: 2 – 5/16″ x 2/0 Lug
    • Check Wire, Lug, and Fuse List at Bottom of List
    • Attaching Black Wire from Negative Busbar to Vehicle Chassis Ground
  • Qty: 1 – 250 Amp ANL Fuse
    • Check Wire, Lug, and Fuse List at Bottom of List
    • On Positive Busbar Protecting Red Wire to Inverter
  • Qty: 1 – ANL Fuse Holder
    • Check Wire, Lug, and Fuse List at Bottom of List
    • Mounted to Busbar under each ANL fuse
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DC Busbar
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AC Circuits & Shore Power
  • Qty: 1 – 30 Amp Shore Power Cord
    • Connecting 30A Flanged Power Inlet to Shore Power
  • Qty: 1 – 30 Amp Shore Power Extension Cord
    • If your Shore Power Cord is too Short
  • Qty: 1 – 30A to 15A Adapter
    • For plugging your 30A shore power cord into a 15/20 amp standard outlet.
  • Qty: 1 – 30A Flanged Power Inlet
    • Connected to Outside of Camper
  • Qty: 10 – 10 AWG 3 Conductor Wire
    • Check Wire, Lug, and Fuse List at Bottom of List
    • From 30A Flanged Power Inlet to Inverter
  • Qty: 5 – 6 AWG 3 Conductor Wire
    • Check Wire, Lug, and Fuse List at Bottom of List
    • From Inverter to Power Distribution Panel
  • Qty: 1 – Power Distribution Panel
    • For Distributing Power & Housing Breakers/Fuses
  • Qty: 1 – 50A AC Breaker
    • Check Wire, Lug, and Fuse List at Bottom of List
    • For AC Branch Circuits
  • Qty: 1 – 20A HOMT Tandem AC Breaker
    • Check Wire, Lug, and Fuse List at Bottom of List
    • For Standard 120V Outlet Circuits
  • Qty: 1 – 20A / 30A HOMT Tandem AC Breaker
    • Check Wire, Lug, and Fuse List at Bottom of List
    • For Circuits that include large loads (hot water heater)
  • Qty: 50 – 12 AWG 3 Conductor Wire
    • Check Wire, Lug, and Fuse List at Bottom of List
    • For AC Branch Circuits
  • Qty: 6 – 120V GFCI Outlet
    • For plugging 120V Appliances into
  • Qty: 6 – Single Gang Electrical Box
    • For 120V GFCI Outlet
  • Qty: 6 – GFCI Wall Plates
    • For 120V GFCI Outlet
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12v Distribution
  • Qty: 1 – Power Distribution Panel
    • For Distributing Power & Housing Breakers/Fuses
  • Qty: 1 – 100 AMP ANL Fuse
    • Check Wire, Lug, and Fuse List at Bottom of List
    • On Positive Busbar Protecting Red Wire to the Power Distribution Panel
  • Qty: 1 – ANL Fuse Holder
    • Check Wire, Lug, and Fuse List at Bottom of List
    • Mounted to Busbar under each ANL fuse
  • Qty: 2 – 5/16″ x 6 AWG Lug
    • Check Wire, Lug, and Fuse List at Bottom of List
    • Attaching Positive & Negatives Wires to the Busbar from the Power Distribution Panel
  • Qty: 5 – 6 AWG Red Wire
    • Check Wire, Lug, and Fuse List at Bottom of List
    • Positive Wire From Busbar to Power Distribution Panel
  • Qty: 5 – 6 AWG Black Wire
    • Check Wire, Lug, and Fuse List at Bottom of List
    • Negative Wire From Busbar to Power Distribution Panel
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Alternator Charging
  • Qty: – LI-BIM 225 Isolator
    • Connects and Disconnects House and Starting Battery Banks
  • Qty: 5 – 2/0 Red Wire
    • Check Wire, Lug, and Fuse List at Bottom of List
    • Between LI-BIM 225 Isolator & Start Battery
  • Qty: 20 – 2/0 Red Wire
    • Check Wire, Lug, and Fuse List at Bottom of List
    • Between LI-BIM 225 Isolator & House Battery Bank
  • Qty: 1 – 250 Amp Terminal Fuse
    • Check Wire, Lug, and Fuse List at Bottom of List
    • On Starting Battery Protecting Red Wire to LI-BIM 225 Isolator
  • Qty: 1 – 250 Amp ANL Fuse
    • Check Wire, Lug, and Fuse List at Bottom of List
    • On Positive Busbar Protecting Red Wire to LI-BIM 225 Isolator
  • Qty: 1 – ANL Fuse Holder
    • Check Wire, Lug, and Fuse List at Bottom of List
    • Mounted to Busbar under each ANL fuse
  • Qty: 4 – 5/16″ x 2/0 Lug
    • Check Wire, Lug, and Fuse List at Bottom of List
    • Attaching Positive Wire to Starting Battery, Isolator x2, & House Battery Bank
  • Qty: 5 – 16 AWG Red Wire
    • Check Wire, Lug, and Fuse List at Bottom of List
    • From Isolator Ign to Ignition Positive
  • Qty: 1 – Add-a-Fuse Kit
    • Check Wire, Lug, and Fuse List at Bottom of List
    • Used to piggyback power for Ignition+ Wire
  • Qty: 5 – 16 AWG Black Wire
    • Check Wire, Lug, and Fuse List at Bottom of List
    • From Isolator Gnd to Chassis Ground
  • Qty: 10 – 16 AWG Black Wire
    • Check Wire, Lug, and Fuse List at Bottom of List
    • From Isolator Sig to Momentary Switch & from Momentary Switch to Chassis Ground
  • Qty: 1 – Momentary Switch
    • Placed in-line on Isolator Sig Wire
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Misc Tools & Accessories (As Needed/Optional)
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Wires, Lugs, Breakers, and Fuses

Wires
Add Wires Individually to Verify Quantities

Lugs
Add Lugs Individually to Verify Quantities

Fuses & Breakers
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22 thoughts on “200 Amp Hour – 350 Watt Camper Van Solar Kit”

  1. Hi –

    I’ve followed your build and it’s helped me a lot. I bought your bundle, the EXPLORIST.life 200ah Lithium Bundle last year and am about to install the Victron Multiplus 2000 watt inverter charger. I am a bit confused on the size wire I need for the AC output from the inverter. Does it need to be a 6/3ga, or 10/3ga wire or can it be a 12ga? (I plan to install only one ac outlet with a 20a circuit)

    I plan to install the AC in with a 30amp shore power and 10/3 ga wire.

    Thanks

    1. Awesome! If ALL you are wiring is a single 20 amp circuit; you can use 10/3 on each side, both in and out; you will just be unable to use the Powerassist function of your inverter if you go that route.

  2. Hi Nate,

    How do you recommend mounting the Newpowa solar panels on a high roof Sprinter? They are 58.4 x 26.6 so seems like they have to go length-wise but even then side-by-side it’s 53.2 inches wide. I’m considering getting a couple pairs of the brackets that Hein sells on eBay to use with some 80/20… do you think that will work?

  3. Hey Nate!

    Amazing Stuff, been following recently, I’m just wondering if i could just use Circuit Breakers for everything instead of fuses! I actually find circuit breakers to be less expensive than the ANL plus Holder combo?

    Cheers, Hope your well,

    Naoise

    1. Ultimately, you can do whatever you like. I provide the best and most cost-effective ways to do things I can and provide the instructions. I, personally, don’t like circuit breakers in place of ANL fuses as they are bulky/clunky and they are more expensive. It up to YOU to determine what advice of mine you decide to follow vs do something different. 🙂

  4. Hey Nate.
    Firstly thanks for all your hard work in putting this site together. This is making my life with wiring and solar so much easier. Anyway as for my question. You state that charging off the alternator gets kinda iffy when the Alternators 70% output is at or around the (50%) Amp hrs of all batteries being used. So my alternator is a 150 Amp standard. I am going to be using two 100 Amp hr Battleborn batteries. Should I presume the vehicle House battery draws as well and add this into the equation? Tks Tony

    1. Re: Batteries. Either way. I like Battle Born batteries and they do not make a 200ah battery (yet). If you have a brand/company you like that makes a 200aH battery, go for it.

      Re: 2P DC Switch. That’s a code compliance thing. You can check NEC 690.17(B) if you are interested in a little light reading. lol

  5. Hey Nate
    Again as all have said I am really great full for all your hard work here. My question is this. Do you feel you need marine grade wire for wiring in outlets and lights etc? Or is regular indoor wire suitable. Also is there any reason not to use the rest of the 10/3 wire I have to wire my inverter to distribution panel in place of the 6/3 in your diagram. Thanks again Tony.

    1. I forgot to mention I’m having a hard time sourcing a small amount of the 6/3 stranded wire. I can find the Romex type but read somewhere it doesn’t stand up to vibrations well and shouldn’t be used in van builds. Again Tks Tony

    2. I recommended stranded wire for EVERYTHING in a camper. Romex is forbidden by the ABYC (American Boat and Yacht Council) for use in sea-going vessels because the vibration caused by moving the vehicle and and an engine running, over time, will ‘work’ the solid copper so it is hard/brittle and it will break.

      6/3 is required between the Inverter and distribution panel because of the PowerAssist function of the Victron Multiplus. The Victron Multiplus can add it’s inverting capability to the shore power input. So… If you were wired into 30A shore power (10 gauge wire) and decided to turn on a space heater, your air conditioner, and your coffee maker; the multiplus 2000 would add up to 2000w of Inverter power (17A) pulled from the batteries to the shore power for 47A of power available to your power distribution panel, which requires 6 gauge wire.

      1. I have the 10/3 romex wire for my dometic ac. I’m still under construction so I might be able to swap it out. Would it be worth it to swap out that wire or should I leave it and not use romex for everything else I was planning on installing?

        1. Solid core wire like romex is forbidden for use in marine applications because the vibrations that occur in boats (and RV’s) can ‘work’ the copper until it gets brittle and breaks. This is why I do cannot recommend Romex for use in Mobile electrical applications.

      1. Hey Nate,

        Quick question, I noticed you recommend a 150|35 MPPT charge controller based off a 350W, 200ahr setup. I’ve seen other blog posts recommending 100|30. Is this just for extra wiggle room and/or possiblity of upgrading?

        I’m wondering if the extra $60 is worth it/necessary.
        Thanks!

        Alex

        1. Thats based on giving people wiggle room to people who are choosing solar panels that are not necessarily the ones in the diagram and potentially exceeding the voltage rating of the 100|30. If you know your panels don’t need the 150v maximum, the 100/30 is definitely the way to go.

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