T12 Hakko iron controller portable case

This is case for Hakko T12 STM32 iron controller available from banggood:
https://www.banggood.com/STM32-2_1S-OLED-T12-Solder-Iron-Temperature-Controller-Welding-Tools-Electronic-Soldering-DIY-p-1182718.html?cur_warehouse=CN

I intended to make it portable since the very beginning, but then I forgot the mounts for the battery belt, so I had to glue them on as an afterthought later :P
I intended and use my controlelr with a small 4S 1500mAh lipo battery with XT60 connector. In order to hold t