When the motorhome is plugged into shore power AND the engine is running, are the house batteries being charged by the engine alternator or by the converter off shore power? I ask because our slide...
Interesting thoughts about keeping the engine running to keep the amps up. When I had my fifth wheel, four slides, and one battery moved them in and out just fine without the need for a boost. That battery was charged by the inverter/charger while plugged in. Seems like the house or chassis batteries should be enough to move the slides.