A couple come to mind. First is that it'll put additional shallow cycles on the batteries and it would have to include some logic so that it was still full by m

A couple come to mind. First is that it'll put additional shallow cycles on the batteries and it would have to include some logic so that it was still full by morning in case the owner wanted to take a long drive. Coming out to a partially charged car after an overnight charge would be bad. On top of that night as far as I know with our current system isn't exactly an expensive time to get electricity because the sun is down and most people are asleep in their homes not in businesses where a lot of peak use is. That will change as the amount of solar in our system increases but for now it's not really an issue. I think the additional cycles is my personal biggest issue with the idea. Battery wear is already among my biggest worries with getting an electric car after years of dealing with the slow terrible decay of cellphone batteries.