After several extremely unpleasant chasis battery deaths on the 2016 Vegas, I finally put a physical disconnect switch at the battery. Now, everytime we are done with a trip, I completely disconnect the chasis battery from everything.
My RV is always plugged in for trickle charging the house batteries but if I were to ever leave it for an extended period, I'd pull the cables off the batteries under the stairs as there are several wires going to it and I don't think they are all behind the use/store switch.
Unlike the chasis battery, at least there is fairly easy access to the terminals on the house batteries. As already mentioned, the chasis battery is a PAIN in the rear to get to (have to go through the passenger dash area).
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