I just installed a dual power outlet so I can monitor the converter voltage and plug in a Fantastic Endless Breeze portable fan. I spliced it into the wires that come out of the converter and feed the 10 Amp circuit for the ceiling vent fan and dome lights.
I switched the converter off and then on again to reset the timer. For two days it was putting out 13.6 volts, then dropped to 13.0 volts, so it looks like it is working as designed at this time.
Of course, 13.6 volts will not properly charge the battery to full capacity, so I will need to continue to use my stand-alone charger that supplies 14.4 volts whenever I need full capacity. For me this is an acceptable procedure, but the PD converter swap is obviously a superior system since it does everything automatically.