My wife and I are living in our 5th Wheel while our new home is being completed. I have taken all precautions for keeping things warm and running. Our unit is 2 years old and has two large 6 volt batteries and the standard 55 Amp WFCO WF-9855 Converter. We are plugged into 50 amp shore service. I have noticed that under normal conditions the panel shows 13-13.5 amps charging when plugged into shore power. When I turn on the Tank Heaters this drops to 12.7 or so amps. Is this converter going bad?
My Silverback has 4 tank heaters OEM installed. (fresh, 2 grey, 1 black) Each heater draws about 5 amps, so 4 would draw about 20 amps. I'd guess if you have what I have ... loosing 1/2 - 3/4 charging amps would be about normal. But again, I'm just guessing.