If you get an Electric Vehicle, you can even make waffles at the campsite in a toaster.
I saw the commercial on television and a Chapman Stick remote power source came to mind.

I don't think you could charge your electric car, where I camp.

I like my Eon one. the app is a little annoying. Can't really tweak it while you're playing, so you're kind of stuck with the EQ. Which really needs to be adjusted for different environments. But once it's set up it sounds nice. Good enough for a practice amp I wouldn't use it any other way,. Good to bring it to the backyard without having to drag an extension cord. If I was a busker or a gigging musician, I don't think I would use it.

StiiiiiiicK