I'm basing what I say on this statement in the Charge Wizard patent:
"In Auto Boost the power converter will run for a maximum of eight hours unless the battery voltage rises above 14.0 volts in which case the power converter will run for four hours after the 14.0 volt level is detected. If the power converter runs eight hours without exceeding 14.0 volts, the power converter switches to the Normal Mode."
If reality differs with this, I defer to reality, plus it looks like my statement about the converter not measuring the output voltage is (as Richard Nixon famously said) "inoperative".