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.
I don’t think a high wattage battery is something that could keep you warm. I was talking more like creature comforts. Not something you would want on-the-go because of the weight, but if you were hunkered down you might at least have lights or some amount of entertainment. Shit, it could even power a tablet, router, and NAS, and give you something to watch in dark times. That’s a good thing to have on solar power if you are staying put.
It will keep you warm for a little while, but not for long.
If things hit the fan, lights can be a cheerful thing to have. But if it’s a widespread power outage that lasts, the internet goes down, and cell service follows pretty quickly. Maybe a Game Boy is usable, but your tablet will be a paperweight, and forget the NAS. On the upside, there just won’t be much you are going to need electricity to run at that point.
I’m saying watch movies on the tablet off of the NAS. That should work perfectly fine with no internet. You would only need to power the NAS and router. And charge the tablet.