Originally Posted by WolfWhistle
...The point is most converter / chargers barely charge...
Couldn't agree more and couldn't have said it better. Everybody is babying these flooded cell batteries and since we have smart chargers there is not reason for converter to stop at a mere 14.5 bulk voltage, especially since it is at the converter output and not on the batteries! Welding cable...please.#4 should be plenty but modern RVs put the converter a long way away from the batteries, in my case 22 feet and the converters never really get to a full charge unless you stay plugged in for 3 or 4 days.
The Bogart SC-2030 runs a much higher boost charge and actually does overcharge based on what the last discharge cycle took out. It has remote sensing and temperature compensation. Frankly I have asked Ralph at Bogart if I can just use a 30 amp 18 volt supply to let the 2030 do it all and dump my converter. Then I would have a smart solar and shore power charger that did it right and the 30 amps would be wonderful compared to what my PD 70 amp unit generally puts out.
In the past, RV's seldom had inverters and all of the electronics that they have today. Not unusual for a coach to have 4 batteries and a residential reefer. Generator charge is fine but my PD Converter wastes the opportunity to push a lot of charge when the genny is running even if I force it into boost with the pendant.
Strange that all of a sudden Progressive Dynamics started to offer a converter with 14.8 volt output? I think they are getting the picture. I have also seen a lot of data that suggests that PD converters do not like the waveform coming from Onan generators as well. Either way, I am logging oll of the data from my Trimetric to an SD card so on my next trip I will really know what happened. That should be interesting.