With my BIONX SL 350W G2 console, 9.6Ah system mounted on Tioba bicycle /Quebec, Canada/ I started to ride last summer. I made just 184 km and I love it. Went for example 30km in level 3 and not used even half of battery.
Even if ride couple of km , very short trip I always charge battery.
Big mistake some owners make by thinking: " I don't need to charge still so much battery left".
I think that it is common knowledge but again deep discharges shorten life of Lithium.