Wireless charging battery box

I have a few projects using the Arduino or ESP8266 that transmit data and I use some old laptop battery cells to power them, I had some lying around on the desk and eventually I had an incident where some smoke was released!!!

So I printed some containers to hold the battery pairs in, keeping all the exposed connectors safely covered. I then had the idea to combine the batteries with an old QI wireless charger coil and charging dock to charge the cells by just placing them on the charging pa