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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.
This seems quite big for a 30W ๐ .
If that's really an usb A port on the side, my own 25W is basically the size of one of your panels. But mine is 5V only. In theory, it is 2 15W ports (5V3A), but in reality it is more 10W (5V2A) each, when both are used, in ideal conditions.
https://www.amazon.fr/gp/aw/d/B0DMNY4HWV
Got another one which delivers 60W (45W using the PD USBC port), with integrated stand.
https://www.amazon.fr/gp/aw/d/B0DQ8PY91X
(Links are not sponsored)
I also tested for Amazon Vime multiple solar pannel, but my biggest grief with all of them is that they lies about their IP rating. They simply gives the pannel own rating, wich doesn't applies to the connection box. That's not respecting the specs, which requires the whole item to be rated, not only part of it. If one follow that logic, my e-bike is IP68 too (if you take the chassis only and not the electronic bits).