I have the voltage settings at minimum, but can't remember what it is. I routinely fly down to 3.4v under load before worrying about landing. What were you wondering? I can check some old logs.
I had mine turned down too but it didnt work with the Samsung 21700 batteries that tried using. These run lower volts and have pretty low current rating.
I was thinking that when the difference between the voltage and the current is too great it hits this mode..
Edit: so what i was looking for is the current and the Volts at the time it happens. Maybe the watts too