Heltec V3 case for IPhone 12 battery

Heltec V3 case designed to house an iPhone 12 mini battery. I had one lying around, so I put it to good use.

Designed for use with a Heltec V3 and an iPhone 12 mini battery (or any battery smaller than 76x37x6mm).

Mounting: should work with M2 screws or other small screws (e.g., small wood screws if they fit the pilot holes).

I'm also sharing the FreeCAD project file so anyone can remix it or improve the design.