From the factory, your 2001 Roadtrek chassis battery will not
get charged when your van is plugged in.
Some newer models actually have a Battery Separator that has this option but I don't know if the were installed in such a way as to utilize it.
This post might interest you: http://www.classbforum.com/phpBB2/vi...2&t=453&p=1038
my '04 Roadtrek had a three stage charger though so it was basically a float charge
maybe hang a note on the steering wheel to remind you to remove it before using the van
I'm a fan of BatteryMinder maintenance/trickle chargers. I have one in my current van right now maintaining both the house and chassis batteries. A second BatteryMinder is keeping my lawn tractor battery happy until Spring.