I made this wall hanging battery holder for my buddy's shop. He uses the Streamlight Stinger flashlights and has extra batteries for them, but no where to store them or any way to tell if they've been charged or not. I'm figuring this could help. This printed standing with the tubes straight up without any supports.

Engineering Aesthetics Custom Delta

No

No

2.5 mm

30%

I used Fusion 360 to draw this model.