[Major Azzwoopin]

I wondered about that ..but I think with the conservative detection schemes you are more likely to go the other way...it is probably calculated to never add a cell to what it thinks is the attached config (to err on the less cells side) if it is borderline then go with the lower number of cells to not create a dangerous overvoltage situation.
My guess anyway..
I have been wrong before and don't suspect that will be the last time..LOL