Hi all.

I have decided to go with a standard 4 pin relay for aux. battery
setup instead of isolator solenoid.

I understand that both wires from refer can't simply be connected to
aux. batt. (thanks Mark)  Even when not set to 12V at refer, the refer
relay is still drawing power.

In order to have refer run on 12V SHORT term, I have altered wiring to
refer as such:

http://web.mac.com/tubaneil/iWeb/Site%205/Refer_wiring_mod.html

Has anyone else done this successfully?

Is this idea/schematic correct?

One obvious drawback is that new switch could be left "on" by
accident. I imagine a relay could be used in place of switch. One that
would be triggered by the 12v switch on refer. I dunno....

What is the PN for aux battery relay, and is it a 30 or 40 amp?

Thanks for any help, and hopefully my diagram will help others out.

Neil.

--
Neil Nicholson. 1981 Air Cooled Westfalia.

http://web.mac.com/tubaneil