SurePower has a web site with lots of useful info on their battery
isolator products.

http://www.surepower.com

Mark McCulley
87 syncro Westfaila

>From: "Pollard, Matthew" <Matthew.Pollard@OREADCA.com>
>To: 'Mark McCulley' <transporter99@HOTMAIL.COM>,
vanagon@GERRY.VANAGON.COM
>Subject: RE: Aux battery & isolator
>Date: Tue, 19 Jan 1999 10:35:16 -0800
>
>The tinkering of the alternator that i mention involves disconnecting
>(bending away) a copper brush from the regulator part and connecting
this,
>via a 12g wire to a specific isolator terminal.
>-M
>
>> -----Original Message-----
>> From:        Mark McCulley [SMTP:transporter99@HOTMAIL.COM]
>> Sent:        Tuesday, January 19, 1999 10:29 AM
>> To:  vanagon@GERRY.VANAGON.COM
>> Subject:     Re: Aux battery & isolator
>>
>> Matthew,
>>
>> Battery isolators (solid state and relay) require a connection to the
>> alternator to supply the charging current to the battery when the
>> vehicle is running. Most Vanagon installations get this connection
from
>> the main battery compartment rather than run another big wire back to
>> the alternator.
>>
>> There is another connection used by isolators that can come from the
>> alternator--a signal indicating that the alternator is producing
power.
>> This signal is used to "switch" the isolator between the "isolated"
and
>> "non-isolated" states. This connection is also available inside the
>> Vanagon and you don't usually have to run a wire to the alternator
for
>> this.
>>
>> Exactly what kind of "alternator tinkering" is required to install
your
>> isolator
>>
>> Mark McCulley
>> 87 syncro Westfalia
>> TRNSPTR
>>
>>
>>
>>
>> >Date:         Tue, 19 Jan 1999 09:48:58 -0800
>> >Reply-To:     "Pollard, Matthew" <Matthew.Pollard@OREADCA.COM>
>> >From:         "Pollard, Matthew" <Matthew.Pollard@OREADCA.COM>
>> >Subject:      Aux battery & isolator
>> >To:           vanagon@GERRY.VANAGON.COM
>> >
>> >I have a SurePower battery isolator. It is of the solid state (as
>> opposed to
>> >relay) variety. It is made for vanagons specifically.  Has anybody
had
>> any
>> >experience with installing these jobbies? The instructions call for
>> some
>> >alternator tinkering, why? Can some one explain what the internal
>> regulator
>> >does and why that function needs to be routed to the isolator.  Will
>> this
>> >tinkering jeopardize the integrity and reliability of my alternator?
>> >
>> >How does the VW isolator work? Where is it connected and to what? Is
>> this
>> >something that someone with some electrical background can quickly
>> fashion ?
>> >
>> >Thanks
>> >Matthew Pollard
>> >84 Wolfsy
>> >89 7' 6" Doug Haut "gun"
>> >
>>
>>
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