Originally Posted by Floating Cloud
We looked again and found that our propane detector does turn off with the battery switch off. (Not sure why Alan's does not.). The light still on with the switch off is the solar monitor. The solar remains on due to a bypass when the battery switch is off.
I visited the trailer in storage yesterday and discovered that yes, indeed, the propane detector turns off with the battery switch off. Don't know why I thought otherwise...
And the batteries were above 13v even though I had left the switch in the On position.
Seems the solar is keeping way ahead of the parasitic drain of the items that don't have their own switches (like propane detector, USB charger, possibly the distribution panel, etc. I did measure the parasitic drain earlier at 140 milli-amps - rather trivial if solar is working.)