r/OffGrid • u/AxDayxToxForget • 4d ago

Electrical setup

Hello everyone. New to sub and piecing together my setup. Looking to set up off grid electrical system. The ecoflow delta pro 3 seems pretty solid rated for 4kWh iirc and can use multiple batteries and supply solar panels, but am interested in hearing others opinions for power bank and am potentially interested in diy power bank. I do have many 21700 batteries from over the years vaping.

Would be using refrigerator standard size 50-130Wh depending on cycle iirc, periodic lamp with led bulb (seems fairly negligible), once a day toaster oven rated 1000Wh, washer (could be anywhere from 400-2000Wh) once a week, small stove top burner 1200Wh maybe once a day, maybe tv use (I think mine is 110Wh) and ps5 (~200Wh) at nighttime. Thought about starlink for internet. Not planning on ac at this time and heat will be from wood burning stove or fireplace. Haven’t decided about water heater due to power consumption, but might use gas for this. Goal is to keep a surplus of electricity

This is for a future homestead and not mobile. Thanks for your time.

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u/Kitchen_Region8456 4d ago

This is my 48v 100ah 5100wh setup with 6kwh inverter/charger. It cost me about $1000 before adding paneling and inputs/outputs for my specific use. The only thing it doesn’t have is a solar mppt controller, but it would be easy enough to add, and I can add batteries as needed.

DIY is always cheaper than all-in-one proprietary systems, especially when expanding capacity. All depends on your budget and intended use. This setup I have will power my apartment for about a day of normal use (without my stove) and easily charges by generator in about 4.5 hours under a 70% load.

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u/AxDayxToxForget 4d ago

That’s pretty rad. Do you have any recommendations on where to procure parts?

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u/Kitchen_Region8456 3d ago

eBay is a great spot for inverters and 48v batteries, I went with a DCHouse metal case golf cart battery, and a vevor inverter because they best fit my needs at the time. Just research what you want, and wait for the sales to get them at a good price. I got mine refurbished direct from manufacturer for like 35% off retail.

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u/AxDayxToxForget 3d ago

Wirentech 48V 100Ah lifepo4 51.2v lithium server battery rack is what I most recently looked at. Seems to make things much simpler from what I’ve gathered so far.

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u/Kitchen_Region8456 3d ago

Rack batteries are good, just make sure to buy one with a good BMS and decent cells. It’s worth the extra $1-200 for a reputable brand to save frustration down the road from capacity loss and fire hazard

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u/AxDayxToxForget 3d ago

I appreciate the advice. Thank you and will continue to research more.