• 10 Posts
  • 116 Comments
Joined 1 year ago
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Cake day: June 26th, 2023

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  • Sounds like you’re well on your way. Mine still has some issues so I’d love to stay in the loop on your build a d will offer any help I can.

    That’s a good point about the multiple batteries, I guess I hadn’t considered that.

    I was able to get mine to run a chest freezer over the summer, but once the sun shifts to fall it isn’t able to charge back up fast enough. I’ve only got two panels and they are on the wrong side of the roof. Also we had a power outage last year during a snowstorm. I was able to plug my house fridge/freezer into my system and it kept our food from going bad. Running a few cpaps should be simple.

    There are a lot of uses for a small offgrid solar battery system



  • I have built this, it’s not perfect and I made mine a little over kill. I even have an extra inverter because I tried to scale mine up to charge a Nissan leaf. It successfully did so, but only for a few minutes before it would get too hot

    What questions did you have?

    As for advice, buy the correct crimping tools, a good set of wire cutters and be sure to get the correct sized wire. I’d also suggest pairing it with a battery, I just did a 12v marine battery lifepo chemistry and made sure my charge controller can handle it. This was actually kinda necessary because it keeps an even charge.

    I didn’t use any calculators or spreadsheet, except the one that showed what the nominal voltages were for my battery

    Also I’d say I regret doing one large instead of multiple smaller batteries just because of cost.

    I’d be happy to help more but just know I am not an expert, or even that skilled at electric work.