yet

I was just thinking the same thing. I was also thinking you can get a wide input voltage buck converter on amazon for cheap and use a bunch of cells in series as the UPS and the buck converter spits out 12V until it cant anymore. Then just wire up a charge controller to charge and balance your lead acid cells.

Have you tried replacing your country?

I haven’t tried it myself but I’ve been looking at NetBird.

Elevator pitch page

Maybe others who’ve used it or know more can chime in on if this is a good idea or not?