Custom Battery Holder Strap

I added to this by making it possible to add whatever battery you want to the holder, of course it might not be perfect, feel free to give me feedback considering this is my first model EVER posted on thingiverse. I included the pin and block needed to make your own battery attachment. The block is included as a .step and .scad file for ease of use. I modeled this in Autodesk Fusion, so if a different file format is needed, I can most likely add it.