Engine battery and house battery questions.
My coach sat for about 8 weeks. Went to move it and the engine battery was dead, drained, kaput. House batteries were fine, they were replaced recently with new deep cells. Anyway I used the bypas...
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The engine should charge both sets of batteries when running. If not there might be a problem with fuses or solinoids between charging and the batteries. I also have a radio switch that is either travel or park so it can run off the coach batteries when engine off.
