Display Dynamic Battery Percentage at Destination in Navigation

I see with the navigation system is that it isn’t able to indicate what battery percentage you will have when you arrive at your destination. When you plan a route, it tells you the battery percentage you’ll arrive with, but since this value is not shown on the screen while you’re driving, it can lead to problems and leaving you without battery, because it doesn’t take into account elevation changes, speed, wind, temperature, and other variables that can affect the battery percentage with which you would arrive at the destination.