This is my new travel NFC reader:
By sheer luck, the powerbank and the reader have the exact same width, and almost the same length. It’s like they were made for each other. I cracked open the power bank, added an ON/OFF switch, removed the regular USB-A socket and soldered the end of a micro-USB cable that I stripped bare and bent the soldered leads of 90 degrees, as close to the go-go end of the plug as possible.
I mounted the reader onto the powerbank at the right location, plugged the micro-USB plug, then potted everything in hot melt:
The uFR Nano Online is totally unmodified but mounts smartly onto it:
A solid helping of electrical tape secures everything in place and masks the ever-annoying flashing light on the side of the reader when it’s on.