Just got a CR-200 wireless car charger for my 920. When I run Here Drive+ the phone battery charge slowly drops and the phone gets very hot on the back towards the top of the phone. (Similar heat experienced when the phone experienced rapid battery drain which I haven't seen in several months) I have used the CR-200 wireless charger without using the navigation app and all is well. The phone charges normally. As far as I know, the phone generally performs as it should and battery life is decent in most situations. I have this same problem when using a couple of other USB car chargers. I've read most of the posts and realize that using a better/Nokia wired car charger is probably the solution for wired charging but... Shouldn't the Nokia CR-200 be able to keep up with Here Drive+ and also give me at least a small amount of positive charge when using it?