Yikes that's scary. In a Cessna or similar once you get into your reserve (figure ~45min running time) it becomes very urgent to get on the ground asap. And this thing looks like it glides about as well as a brick.
EDIT: worth quoting:
> it can fly at a cruise speed of 55 knots to a range of about 20 miles (32 kilometers) with 20 percent battery reserves left
That's four minutes of "reserve power" lmao. Absolutely not, no thanks.
EDIT: to put this into perspective, if you're flying at 7500ft and you hit your 4min reserve, you would need to fly straight down at over 20mph, and then aggressively slow your descent during the last few seconds in order to not die.