Aren't there marine switches that connect and disconnect two banks of batteries? If there is wouldn't it make sense to have one in the RV where one side of the switch connects & disconnects hose batteries and the other side connects and disconnects the chassis battery? Wouldn't that be thousands time less confusing than a USE/STORE that doesn't really disconnect the house batteries or turns on a light that just shows DC power from the converter is going to the batteries?
Did a quick search on West Marine and here is a switch that does exactly what I was asking. One side operate house battery connect/disconnect other side operate start battery connect/disconnect third side connects house batteries & chassis battery.
https://www.westmarine.com/buy/blue-...1?recordNum=28
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