Thanks, it's good to see the different rationales for each way. The way I'm leaning is to put it on the battery side. That way if I plug into shore power I'm sure to get a battery charge. And if nothing works in the house, I'll realize the switch is OFF. OTOH if I connect it to the house side instead, I could plug into shore power but forget to turn the battery switch. My house circuits would work but my batts would not charge.
So, the downside of putting it on the battery side is that I could not completely isolate the batteries. I'd have to switch off the converter to accomplish that. I'm trying to think of what happens to make that become an issue.
I'm trying to make it idiot-resistant. :)
But I have to imagine which consequences of idiocy would be more likely, and which ones worse.
