4-wire battery holder

The distance between the contacts is from 25mm to 70mm.
For a bolt with a diameter of 4 mm, you need to grind the head on one side to prevent turning. And reduce the height of the cap to 2 mm.
Cut the plastic nut of the negative connector as in the photo.
The bottom nut m4 is inserted when printing when the printer is paused.
Connectors are searched on Aliexpress by the line 'four-wire battery probe'

Print on the side with supports.