Electrical Schematic

I downloaded a schematic design program to do this, but was spending too much time just fooling around with the tool. So I did this on powerpoint. It was annoying at times but I got down what I wanted in relatively short order.

This is how I'm thinking of wiring things. I'm not 100% sure I can wire the charger that way (using the common side for the return). I don't see why not, but then I'm not an EE.