Similar as a few others i get inspired but i made small changes. Let me know ;) its always welcome .

At 100%:
X 18mm
Y 16mm
Z 4,8mm

Add 3% on 100 (in any slicer programm tool for resizing) i do use Cura latest version

Object Profil:
X 18,5mm
Y 16,5mm
Z 4,9mm

If you do use 18AWG cable it would fit too
I did print it in pla, but i use TPu for the LipoBalancerHolder at the end.

Yellow Solid TPu 1mm
Infill : 50-100%
Extru: 210-230°

Enjoy and good Printing everyone

cheers

Schmou

Doesn't Matter

No

1.75mm

50-100