I have it turned on and it helps when charging during the night. It will charge until 80% and then charge until 100% for just in time when it thinks I need it.

I have it turned on and it helps when charging during the night. It will charge until 80% and then charge until 100% for just in time when it thinks I need it. But then when I get in my car it will just stay charged at 100% all the time.