I am a new guy here, and have a basic question. I have a level 2 setup in my garage (I think). It is wired for the 240 volt 50 amp circuit and has the 14-50 receptacle. I use the charging module that came with the car and an adapter by Tesla to fit the 14-50 plug. When I am not charging, is it OK to leave the setup plugged into the wall socket, even though it is not plugged into the car? I am wondering if this is drawing any current when I am not charging. I don't want to run up the electric bill any more than is needed.