RE: Starting Battery Should Be In Good shape
HVA wrote: One thing that I discovered with my Smart Relay is that the
starting
battery needs to be in good shape to deliver enough voltage to trip the
relay and charge the aux battery.

And I think I'm encountering just this problem right now.  Although my
starting battery is only about six months old it has been hammerd good once
(lights on for a couple of days) and angain a couple of weeks ago.  On this
last trip I was suprised to see the aux battery at only just a little above
12v after a 130 mile drive.  And I checked it yeaterday after about 80 miles
of driving, aux only at 11.2.  So project for this week is to do some wire
tracing (tho make sure the Surepower seperator is installed right) and take
some voltage readings at both batteries with the engine running.