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Subject:Re: Which wire to connect? (second battery installation)
From:David Beierl
Date:Thu, 4 Oct 2012 04:38:12 -0400

At 02:16 AM 10/4/2012, HotelWestfalia wrote:
>This is a ‘91 Westfalia.
>I am looking at the relay’s wires and somehow 
>I can’t figure out which wire is the one I 
>should connect the second battery’s positive 
>to.  Yes, there are the numbers of 87, 85, 86, and 30.
>
>Good help would be appreciated.
>
>Zoltan

30 to charging source
87 to battery
86 to alternator D+
85 to ground

Yours,
David