I'm getting ready to put her in storage for the season. (approx. 100 days, outside, covered, routine temps of 20-30's/night & 30-40's/daytime.)

In the past, because of a "dumb" converter, SOP was to pull both batteries and store them in heated area, week on trickle charge, week off, etc.

Now I have a new converter with a Smart Wizard, so my thinking is to leave the batteries in the coach with the converter plugged in. (batteries will still be physically checked at least monthly.......)

But that leaves a chassis battery unattended. So the question is: Can I jumper around the solenoid and the isolator to have the coverter maintain both batteries? And if I can, what wire size is adequate? ('bout 10' between battery locations)

If it's a factor, house battery is wet cell deep cycle, 550CCA...Chassis battery is sealed wet cell, 650CCA.

Or should I just install a Battery Minder on the chassis battery and leave well-enough alone?

As always, your insights are appreciated.

Happy Thanksgiving!...and we should all be truly thankful that we can occupy our minds with little stuff like this......

I'd not hook the chassis and engine batteries in parallel, especially since the engine battery is a sealed cell. I'd get a separate smart charger to keep the engine battery charged. Don't put it in the battery compartment. And it doesn't have to be charging all the time.

The Intellipower converter can be left on because it has the Charge Wizard; although I don't store mine in the winter, I leave the coach plugged into 120VAC all the time.