Or any of the Forbidden range...

However that being said, in the majority of cases, I take my bike home or to a place where I'm staying if riding regionally and charge during the evening or overnight. Rare for me to go all day and need a mid ride charge. So the slow charger will suffice.
Further to the debate over charging levels, the Avinox program allows setting charging levels. Now, I assume the BMU limits charge to prevent overcharging, so why wouldn't they limit it to 80% even though it says fully charged (a bit like that scen in This is Spinal Tap where the amp goes to 11 and not 10)? I don't understand the technology enough to have a considered opinion, but if the BMU is limiting the overcharge, then if I then set it to cutoff at 80% am I now charging to a much actual level??
At the end of the day, how I set up the power usuage and levels in the app for the bike will determine how long I get out of the battery.