I noticed, that my Zeee 3S 3200mAh LiPo is a little too long and would pinch the cables.
Its dimensions are: 135mm x 43mm x 18mm
Therefore, I extended the original Center Chassis part by 10mm to have some breathing room.
I also added a hole in the sidewall to allow fixing the battery with a reusable ziptie.
CAVEAT:
Of course, the original small battery adapter will have some play as I have not adapted it and the central M3 rods will have to be 10mm longer.
The author remixed this model.