Spastic Chevy Bolt range meter dropping miles like a rock off Long’s Peak

I’ve been experiencing major range meter problems on my 2020 Bolt for the last three to four months. Two Chevy dealerships — John Elway and Ed Bozarth here in Colorado — have claimed nothing is wrong. But something is definitely wrong. I want to say that the heat and AC are never on for what I explain below and that I have driven EV ONLY for 10 years and 140,000 miles, so I understand hills,…