On Saturday I rode my Zero S the 40 miles to my BMW dealer, traveling about 10 miles on the freeway at 60 mph and the rest on expressways at 40-50 mph. I charged up there for a couple of hours, adding 3 bars to the fuel gauge and rode back the same way. When I returned home I still had 4 bars showing on my gauge. One time I rode 100 miles without needing to recharge, about 10 miles were on the freeway at 55 mph and the rest of the trip was around 35-40 mph. It seems like my battery pack performance has improved somewhat since the bike was new. I now have 2700 miles on the clock. The secret to getting good range is to keep your speed low, open the throttle slowly and keep it steady, install a windshield and try to avoid headwinds and hills. All of which is common sense for anyone who is trying to get the best fuel mileage out of any vehicle.