This a remix of B_3D's Black&Decker 18V (Old) Battery Holder https://www.thingiverse.com/thing:5021043
When I printed B_3D's model it near impossible to get the battery on the holder due to it being tight. I've modified the design so that the battery slides on easily.
See my updated version: https://www.printables.com/model/204879-bd-18v-battery-holdermount-for-the-wall Account for being able to attach the charger while on the wall.
The author remixed this model.