I'm only half kidding. I'm a bit of a prepper and I have lots of powerbanks and devices that charge from USB but besides idling my truck I really had no other way to charge any of them in case of a long-term power outage which seemed a bit of an oversight on my part.

Not like this solves the issue. 30 watts (under ideal conditions) isn't much but it's a start.

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[–] Serinus@lemmy.world 4 points 1 month ago (1 child)

That's a weird panel to battery ratio. Guess you've gotta work on that now. Got more room on your roof, preferably south-facing?

Though if there are ground systems that can aim the panels and you have room there, that could be really cool.

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[–] IcedRaktajino@startrek.website 5 points 1 month ago

The usable south-facing roof area is full, unfortunately. I'll have to do ground mount in the back yard and run a bunch of conduit if I want to add any more PV.

The 32 kWh of batteries are made of two 16 kWh batteries in parallel. Since this system is in lieu of a backup generator, I have it configured to only draw the batteries down to 50%. That leaves the bottom 16 kWH available for emergency use. Basically, for day to day usage, I treat the battery as being half the capacity it really is.

I've only been running this system for about 3 weeks now, but the batteries have been operating between 65% and 90% pretty consistently even running the A/C pretty heavily. They've been closer to low 60s this past week, but the wildfire smoke was choking out the sunlight Thursday and Friday.

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lemmy:	0.19.20
mlmym (mschae):	26.3.4