I printed in Polymaker HT-PLA-GF.  I'd recommend similar HT PLA, ABS/ASA, or PETG.  These batteries can be heavy so make sure what you print is strong enough and temperature tolerant for your application.

OpenSCAD note:  I use modules which I have created for most of my models.  I can uploaded to a separate model upon request.  I figured I would upload my latest library modules if there is enough interest.