I was amazed when I learned that most powerbanks do not function that way. Some of them will switch modes if you unplug them, but there is still an interruption

I was amazed when I learned that most powerbanks do not function that way. Some of them will switch modes if you unplug them, but there is still an interruption. I was able to find a device that actually functions as a USB UPS: https://www.amazon.com/gp/product/B07ZS3WYZY/ https://www.amazon.com/gp/product/B07ZS3WYZY/ It is so nice to be able to unplug my Pi to move it, and have it stay on. I also use them for my usb powered wifi security cameras. So far they have not failed me.