Wall mount for the 2A Bosch e-bike battery charger 36-2. The battery cable can be hidden behind the charger housing, there is a canal to hold it. The Bosch fits nicely into the holder and doesn´t clatter around too much, Maybe you can even scale to 97%?
I wanted the holder to be PLA-saving, so I gave it some gaps where it wouldn´t make a difference. The holder is small enough to be printed on a 120mm bed like the Monoprice Select Mini has got and took me roughly 4,5h to print in medium Quality.
You can screw it onto the wall using 3.5 - 4mm countersunk screws (~20mm length).