Update 7/25/2020: The Battery Charger Mounting Clip is posted here.
I am printing an extended battery holder and will post that when I have it tested.
Update 7/25/2020 (#2): I had the remixed holder almost printed when I read that it will not work with the charger attached to the battery. Unfortunately I need the battery + charger to both sit in the holder, so I decided that I would need to re-design the holder and I have given up on the remix. I will make my own holder to go with the charger holder. I had to model a crude battery to get the dimensions about right and the new design is almost finalized. I will post the new design once I have it tested.