I used to keep my '82 Porsche 911SC on a battery tender the whole time it
was in storage over the winter.  Porsche even sells them at the dealer.  A
higher current booster may cause problems, but a low current tender won't.

Mike B.

----- Original Message -----
From: "Don Hanson" <dhanson@GORGE.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Tuesday, April 22, 2008 9:50 AM
Subject: No Start after winter storage..RE from the digest

>  Hey all,
>  One thing to consider when rousing your beastie from hibernation after a
> winter:
> You may want to disconnect your batterie(s) (if you neglected to
> disconnect
> it before putting the vehicle to sleep) when you put a charger on the
> system.
> Dunno if it really makes a difference with the Vanagon, but most of the
> Bosch electrical systems I've had experience with are susceptible to
> possible component damage when charging the battery.  I know for certain
> that you can destroy a very expensive engine management computer in
> Porsches
> if you do not disconnect it during battery charging..
>  Maybe I am "gun-shy" now, but pulling a cable is easy and it can't really
> hurt much
>  Don Hanson
>