How long the battery lasts is a real measurement most of us can appreciated. . This is affected by weight, tires, wind, hills, ride speed and how hard the rider wants to pedal, so everyone's numbers vary, I've found that I tend to pedal with the same effort on my BBS02B and hubmotor bikes, and it's really kimd of light work,. I'll burn the same watt-hours on the same route. Typically 10 WH/mile, but often a little less.

With my torque sensor mid motor bike, half the power of the BBS02B, it requires the rider to put in some work before the torque sensor responds,I could set it up for less force, but I prefer what I have. Result is I'm at 8WH/mile. Some of that is narrower tires and lighter weight, but a lot of it comes from the ride (me).