John,

I have to agree with you. After years of using single batteries for
starting and running and other for House Battery and a single for
Inverter, I finally learned to start on two and run on both; just like
my truck camper. My Inverter wasn't hooked up to the battery switch so
that did need special attention. I've since done away with the Inverter
battery and paralleled it inverter with the house battery. They all get
the same charge. Works for me and cleaned up the wiring.

http://community.webtv.net/tassail/ThomPage