I've had my Leaf only two weeks, and I am on the steep part of the learning curve. The information on the dash is important, but I'm confused as to how to correlate some of it. For instance, with a 100% charge and 82 miles registering, I drove to an elevation of 5000'. When I arrived, the charge was about 50% and the miles registered at 24. When it came time to return home, the downhill adventure put about 30 miles back on the dash, but the battery only registered about 40%. So which do I believe? What is the correlation between the % battery charge and the miles available?