I can't answer your question, but I just noticed today while driving and coasting to a red light I saw no charging even when I hit the brakes. I only had 5 bars of charge so I don't understand why it didn't charge some more. This was the first time I noticed this, but I will pay more attention to see if it happens again. In fact it seems like the computer handles the charge and assist quite differently from the way it did on my HCH. I see no charging while driving on the highway. Yesterday the battery went from 5 bars down to 3 bars while driving on the freeway and then forced charged. This was on a flat section of road. In city driving I'm usually at 5 and sometimes 6 bars of charge. Seems like things are almost the opposite of what they were in the HCH.