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Subject:2nd Battery Install
From:Bruce Ralphs
Date:Tue, 20 May 2003 14:33:51 -0700

hey Gang, my 85 Westy has the 30a relay under the 11x7x6 inch space
under the driver's seat.  Is it really as easy as the commonly asked
questions section implies: see below?  Cause that is exactly what I am
looking for as a result.

Also, please someone tell me what that little black box is attached to
the driver's b-pillar at the base that some of these relay wires run to
then I assume the fridge.  Just stuck to the b-pillar right in front of
the cabinets.

Cheers, bruce

'85 Westy
'02 Snap Beetle

- - - -
Here's what you need to do to connect an auxilliary battery if your
             bus comes with the relay installed.  You should have a few
                basic electrical skills, if not, get some help from
someone who does.
Disconnect your primary battery at the ground strap.
Disconnect the 2 red wires leading from the fuse box behind the
                 drivers seat from the relay terminals. These wires lead
to your                         fridge and cabin light.
Connect these two wires to the + terminal on the aux battery.
Run an 8 or 10 ga wire from the + terminal on the aux battery to
                  terminal #30 on the relay. This terminal supplies
current to                         charge the aux battery when the van
is running.
Connect a ground strap to the aux battery.
Reconnect the ground strap on the primary battery.

That's it. With this configuration, the aux battery supplies cabin
            power whenever your engine is not running. When your engine
is                 running, the alternator charges both batteries and
supplies cabin power.                 (Note:  To start your engine with
the aux battery, you'll have to                 jump it to the main
battery.)

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