As long as you are plugged in, you can leave the breakers on and the disconnect key in place. The converter will keep the batteries charged. *BUT* if you remove the disconnect key, the the converter can *NOT* keep your batteries charged and the parasitic loads will drain them to nothing. Not good!
So there are two choices:
1. Leave it plugged in with the key installed
2. Disconnect the battery at the ground cable once it is fully charged and unplug from shore power.
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Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
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