J1772 Charger Holder.  Slim profile - doesn't stick out from the wall too far.  Mounting holes are aligned so that you can mount it to a single stud.  Loop the extra cord over the top.  

No supports needed as long as you print it on its side (as shown in the picture).

UPDATE 1:  I made a “Larger” version of this model with two key improvements:  1. A larger notch as per the feedback from JVANHOU (thank you!).  2.  I increased the distance between the port and the wall.  I found that if I had the cord looped over the top, then often times I have to move the cord in order to get my hand around the J1772 to remove it.  Hopefully this fixes that problem.  I'll be printing/testing this out shortly.

UPDATE 2:  I uploaded version 3, with an improved the length of the notch, which provides a better fit (latches on better).  I also made other minor improvements.  I highly recommend this version!

If you download the model, please do me a favor and hit the “LIKE” button too. Thanks!