My range on 760wh is about 39 miles at 15 mph. But that is on real world road, some wind, some stops, etc. No hard pedaling, no aero tucks, panniers.
But bear in mind, a fitter cyclist pedaling an ebike at 15 mph might be using as little as 50 watts of motor power. So a theoretical 15 miles per 100wh even if using 100w.
In my mind, another example of how far a guy can muscle power an ebike really.
I'm not knocking the bike, just knocking test conditions that aren't very real world. I've never done a range test that didn't involve up and down at least 500' of vertical. And how many of us buy an ebike because we really crave riding around at 15 mph?
Come on, test the bike at 20 mph, on a course that climbs a few hills, and rides in all 4 directions to even out any effects from wind, and includes at least a few stop signs. Bet it comes out a lot closer to what all ebikes get. I'm not saying riding in the proper gear is not more efficeint than a hubmotor that isn't. Just saying that good gears don't magically get you a waiver on the laws of physics.
I'm sure it beats most hubmotors. I will give you that. But not by double. To test an ebike, you have to at least minimize the effect the rider has on range. The best way to do that, is to test at or above 20 mph, where rider input has less a percentage of total watts.
THE LIPO RULES. NEVER ABOVE 4.3V NEVER BELOW 2.7V DON'T PUNCTURE
Ideal charging /discharging range for Lipo, 3.65v minimum 4.1v maximum
See battery technology section, FAQ thread at the top of the page for lipo noob info.