I don't remember,can you set the amount of current during charging to the batteries with the trace inverters?If you can,then set them at a high charging rate if you are only going to run the generator for a couple of hours.Also do the toe kick heaters run off the inverters?My heater only runs off shore or gen,if that is the case I would turn them on to come on with the gen,otherwise I would not run them on the inverters because they consume too much current.