Battery charger crocodile adapter

This is an adapter that allows clipping in crocodile leads so that you can charge flat batteries with your cylindrical charger / capacity tester.

Use 2 M4 screws, preferably flat-headed countersunk ones.

I'm including 2 versions. Latter is optimized for printing on the side (faster, sticks better, looks not that cylindrical).

Post your makes, please

P.S. For those who don't have a 3D printer, this is also avaliable on ebay as: 18650 dummy battery adapters for pouch cells

and on etsy.