Skip to main content
Gerry | Vanagon
Checking account...
← vanagon.com home · Continue the discussion in the forum
Subject:Wiring in 2nd battery on Westy..
From:carboncow
Date:Sat, 11 Mar 2006 13:31:25 -0500

So when you guys add the 2nd battery and combiner/relay system I am curious
to how the subsystems run.

Are the wires on the main battery that run to only unique subsystems like
the light in the back, 12v fridge or stereo that can be moved over the the
deep cycle now? Are the isolated subsystems or does the wire from the
battery run straight to the main block under the dash?

Do you have to rewire independent system to now run off the deep cycle to
keep it isolated? I noted my dash stereo stays on with the ignition off but
I have yet to test my theory that some of the 12v items run separate from
the standard ignition circuit.

Does the factory alternator have any issues with trying to juice up the
starting and the deep cycle for anyone? I don't know the amp output on the
factory alternator.

Shawn