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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.
please share a link if you have one to offer up
Doesn't really make much of a difference which one you get. They all do the same thing and perform more or less the same. I happened to get a good deal on this one as it was only 30 euros so 1€/W though I doubt it'll do full 30 watts even under ideal conditions. The brand is FlexSolar.
thank you!
Look up Project Farm on YouTube. They've done several episodes on solar panels and power banks. Data sheets with their test results are linked in the description of every video.
thank you!!