Please Explain Battery Isolator Operation/Function

[Tom Warner]

Eric since you already have the Truecharge 40 (or is it a 40 +)? you
can add a echo charger to it and use it to charge the generator
battery separately. http://www.excessenergy.net/chargers.htm

Hope this helps,

Tom Warner
1982 Bluebird
Vernon Center,NY

At 09:57 PM 11/6/2005, you wrote:
>Hello Tom,
>Thanks for isolator and auxiliary switch explanations. I will have
>to get the generator
>battery connected to a separate charger. Xantrex chargers can
>operate in flooded, AGM or
>gel modes depending on the setting you choose on the control
>panel. It cannot operate in
>more than one mode at a time. There are differences in charge rate
>and voltage between
>the battery types so even though the isolator will prevent one
>battery from draining
>another, it will expose all batteries to the same recharge settings
>with possible damage
>and shorter life for some depending on the mode you choose.
>
>In hindsight, I would have been better off to install the same type
>of battery throughout. It
>didn't dawn on me about the possible isolator connection until I
>reread the Xantrex
>manual on charging modes.
>
>Eric Johnson
>84FC35SB
>San Antonio Texas
>
>--- In WanderlodgeForum@yahoogroups.com, Tom Warner wrote:
> >
> > There are 3 terminals on your isolator. The center goes to your
> > alternator and charger, one end terminal goes to your chassis battery
> > and the other end terminal goes to generator battery.
> >
> > The auxillary switch on the dash connects the chassis batteries and
> > generator batteries in parallel so that either the low chassis
> > batteries will be "boosted" by the generator battery or if the
> > generator battery is low, the chassis battery can "boost" it.
> >
> > In the configuration you noted the charger is charging both the
> > chassis and generator batteries. But there really isnt a problem
> > since each battery is "isolated" from the other.
> >
> > Is this what you were looking for?
> >
> > Tom Warner
> > 1982 FC35
> > Vernon center,NY
> >
> >
> > At 07:20 PM 11/6/2005, you wrote:
> > >My coach has 4 - 6 volt AGM batteries that serve as starting and
> > >accessory DC supply. I have
> > >a gel battery mounted in the generator compartment that starts the
> > >generator. I have an
> > >"isolator" in the coach battery compartment with leads coming from
> > >the coach and generator
> > >batteries. I use a Xantrex 40 Truecharge, located in the center
> > >driver's side compartment, to
> > >keep the coach batteries charged. On the dash I have a rocker switch
> > >that reads "auxiliary
> > >battery". My understanding of the dash switch is you can use it
> > >momentarily to augment the
> > >coach batteries if they're too low to get the engine started.
> > >
> > >I've read a number of references to isolators but am clueless on how
> > >they function and would
> > >appreciate some education on the subject. I'm particularly curious
> > >if my Xantrex charger may
> > >be supplying the generator battery as well as the coach batteries.
> > >Xantrex says mixing battery
> > >types with the same charger is not a good thing.
> > >
> > >Eric Johnson
> > >84FC35SB
> > >San Antonio Texas
> > >
> > >
> > >
> > >
> > >
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