Dennis, something like this?
http://www.amazon.com/dp/B0012R2OWC/ref=wl_it_dp_o_pC_S_img?_encoding=UTF8&colid=OM97V6TY7TV0&coliid=I3350LR9RFCPCL

Miguel

On Thu, Nov 28, 2013 at 10:02 PM, Dennis Haynes <d23haynes57@hotmail.com>wrote:

> http://progressivedyn.com/power_converters.html
>
> Are amongst my favorites. If you also want an inverter and a permanent
> installation consider one of the inverter/charger units with automatic
> switching. Xantrex makes some nice  units there. None of these are
> cheapies.
>
>
> Dennis
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
> Mike South
> Sent: Thursday, November 28, 2013 3:18 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: GoWesty Aux Battery
>
> Do you have a brand/model recommendation, Dennis?
>
> mike
>
>
> On Sun, Nov 17, 2013 at 7:41 PM, Dennis Haynes
> <d23haynes57@hotmail.com>wrote:
>
> > Only if you add an appropriate battery charger!
> > If you are planning to do that then consider a voltage controlled
> > battery combiner. The battery charger can be connected to the house
> > battery and also charge the chassis battery when connected to "shore"
> > power. The really good charger-power supplies will do a very good job
> > of maintaining batteries while in storage.
> >
> > Note that charging a battery and having a 12 volt power supply are
> > different functions. RV-Marine chargers (better ones) are designed to
> > compromise and work well for both functions. The charger-power supply
> > needs to be sized for the battery you wish to charge and the load that
> > will be on while charging.
> >
> > Dennis
> >
> > -----Original Message-----
> > From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On
> > Behalf Of Alain Thibault
> > Sent: Sunday, November 17, 2013 8:33 PM
> > To: vanagon@GERRY.VANAGON.COM
> > Subject: GoWesty Aux Battery
> >
> > Allo all
> > Does someone know if  the GoWesty kit for the auxiliairy battery allow
> > the auxiliairy battery to charge when the camper is hooked and using
> > 120V current as in the EV campers?  Thanks in advance Alain Westfalia
> > 1986
> >
>