That's very interesting. I did not know this. I saw your other response, it almost feels like the other options are not really optimal either. I guess the 5-vo

That's very interesting. I did not know this. I saw your other response, it almost feels like the other options are not really optimal either. I guess the 5-volt power board is the best? But browsing through the Aliexpress results, I could not find anything that comes already wrapped up in a box and ready for use, as you would with a normal UPS. I suppose most people prefer that.