Took a short distance ride (18 miles, 700' of climbing) on a Faraday Porteur S city bike (43V, 6 a/h battery = 250 w/h). Two levels of assist and, of course, pedal only. Kept at level 1 or 2 for most of the ride except downhill portion (nice and stable at 32 mph). Easy to maintain at 18 mph in Level 1 and 20 in 2 with a 180 pound rider, flat ground, 5 mph or so headwind. Battery still pulling at end of ride, but must have been close to empty.

!8 miles, 3000'+ off road on BBS02, 52V, 10 a/h battery seemed almost depleted (hard to tell since battery indicator is for 48V system). Rode level 4 of 9 a lot of the trail.

Friend on Bosch (36V, 11 a/h) used about 60 % (three lights of five) on same ride, but his weight with bike is about 190 pounds, mine about 230.