Those Guest chargers are very well regulated and designed to be left turned on. They are not a cheap charger that just delivers voltage and current. They are a bit pricey for the capacity delivered.

Dennis

----- Original Message -----
From: "Daniel L. Katz" <katzd54@YAHOO.COM>
Date: Monday, March 13, 2006 6:47 pm
Subject: Re: Dual battery chargers

> jeff:
>
> it is usually unnecessary to use a charger during the week if the
> van is
> driven most weekends.
>
> although an ordinary charger is not a constant current source, and the
> charging current naturally tapers off as the battery reaches full
> charge,there is a real danger of overcharging the battery when
> used in place of a
> true trickle charge unit.
>
> more is not always better.
>
> dan
>
> On Sat, 11 Mar 2006 11:06:56 -0800, Jeffrey Vickers
> <jeff@VICKERSDESIGN.COM> wrote:
>
> >Marinco sells a 110V battery charger that will charge two batteries
> >at once--two 5 amp outputs.
> (http://www.marinco.com/scpt/ProdPage.php?>loadItem=2610-230-
> B_Guest%20Industrial) My Westy mostly sits during
> >the week and I normally keep a small 1.25 amp charger attached to it
> >and that seems to work fine. I'm going to be adding a aux battery
> >soon and was thinking about one of these dual battery 110V chargers
> >set up to charge both. I would plug it into the fridge 110 outlet
> >under the sink. Question is: is 5 amps too much if I keep it plugged
> >in for 4 or 5 days at a time?
> >
> >Thanks.
> >
> >Jeff
>