I don't really see this leaking of power. That said, I have not been checking this in great detail since quite a while ago, so I don't know if something changed in the mean time.
Let me rephrase then : For all practical use cases of determining state of charge on the battery, voltages don't matter except at the knees.
I must protest that Cell Voltages manifestly do relate to State of Charge, although the voltage changes which must be measured vary by relatively small amounts within most of the 'working range' of LFP battery cell voltages.
Let me rephrase then : For all practical use cases of determining state of charge on the battery, voltages don't matter except at the knees.