hi Eric,

I had an 85 with 2 batteries (sold). The 2nd battery under the driver seat
has a relay, it kicks in ON and OFF.
My other vans don't have it so I added a 2nd battery using a separator I
mentioned. It works well..

On Sun, Apr 30, 2023 at 11:24 AM Eric Caron <ericcaron96@comcast.net> wrote:

> Hi Dan,
>
> I think this Blue Sea unit has that relay for two batteries built in.  So
> good for Chassie and house.
>
> I may be confusing things just a little by having two house batteries
> wired together but I think that may be a fairly common thing people can do.
>
> Eric Caron
>
>
> > On Apr 30, 2023, at 2:19 PM, Dan N <dn92610@GMAIL.COM> wrote:
> >
> > for your 84 I'd think you need a battery separator.. something similar to
> > this one..
> >
> > https://us.amazon.com/Sure-Power-1314A-Battery-Separator/dp/B00T3724V4
> >
> > On Sun, Apr 30, 2023 at 11:08 AM Eric Caron <ericcaron96@comcast.net>
> wrote:
> >
> >> Perfect,
> >>
> >>        It is a great unit.  That was a excellent upgrade on your part.
> >>
> >> I had thought for some reason they had updated it, but it sounds like it
> >> still does everything I need it to do.
> >>        I will need to leave at least one van outside in the cold in the
> >> winter and will feel better with this unit running.
> >>
> >> My only concern about the 84 set up is that the house battery currently
> is
> >> two batteries wired together and charging from the alternator.
> >>
> >> Eric
> >>
> >>
> >>> On Apr 30, 2023, at 1:13 PM, Dennis Haynes <d23haynes57@hotmail.com>
> >> wrote:
> >>>
> >>> The 7605 is the 120 volt AC, with 10A charger and 60A auto relay. This
> >> is the one that you have.
> >>> It has not changed over the years.
> >>>
> >>> Dennis
> >>>
> >>>
> >>> From: Eric Caron <ericcaron96@comcast.net <mailto:
> >> ericcaron96@comcast.net>>
> >>> Sent: Sunday, April 30, 2023 12:39 PM
> >>> To: Dennis Haynes <d23haynes57@hotmail.com <mailto:
> >> d23haynes57@hotmail.com>>
> >>> Cc: Vanagon List <vanagon@GERRY.VANAGON.COM <mailto:
> >> vanagon@GERRY.VANAGON.COM>>
> >>> Subject: Re: Electrical charging options?
> >>>
> >>> Is this the same one on Amazon?
> >>>
> >>>
> >>
> https://www.amazon.com/gp/product/B01BV1MSTM/ref=ewc_pr_img_1?smid=A30X6C7XOKV1O1&th=1
> >> <
> >>
> https://www.amazon.com/gp/product/B01BV1MSTM/ref=ewc_pr_img_1?smid=A30X6C7XOKV1O1&th=1
> >>>
> >>>
> >>> Eric
> >>>
> >>>
> >>> On Apr 30, 2023, at 11:56 AM, Dennis Haynes <d23haynes57@hotmail.com
> >> <mailto:d23haynes57@hotmail.com>> wrote:
> >>>
> >>> 10A BatteryLink® Charger (North America) - Blue Sea Systems <
> >> https://www.bluesea.com/products/7605/BatteryLink_Charger>
> >>>
> >>> Dennis
> >>>
> >>>
> >>>
> >>> From: Eric Caron <ericcaron96@comcast.net <mailto:
> >> ericcaron96@comcast.net>>
> >>> Sent: Sunday, April 30, 2023 11:50 AM
> >>> To: Dennis Haynes <d23haynes57@hotmail.com <mailto:
> >> d23haynes57@hotmail.com>>
> >>> Cc: Vanagon List <vanagon@GERRY.VANAGON.COM <mailto:
> >> vanagon@GERRY.VANAGON.COM>>
> >>> Subject: Re: Electrical charging options?
> >>>
> >>> This is why I rely so much on this list and Dennis,
> >>>
> >>> Anyone got the link to the correct most up to date unit?
> >>>
> >>> It sounds like what I want.  And this choice is still working perfectly
> >> in my 85.
> >>>
> >>> ERic
> >>>
> >>>
> >>>
> >>> On Apr 30, 2023, at 11:45 AM, Dennis Haynes <d23haynes57@hotmail.com
> >> <mailto:d23haynes57@hotmail.com>> wrote:
> >>>
> >>> The link for this is for the 240 volt version.
> >>> For those curious this charger also includes the battery
> >> combiner/isolator relay for supporting 2 battery installations. This
> makes
> >> for a simplified installation, one device for shore power and alternator
> >> charging. Also, when shore power is provided the chassis battery gets
> >> charged first and then the house (aux) battery gets connected as voltage
> >> rises. It is also available in a 20AH version. For a marine device it is
> >> surprising that this does not a have "low voltage" interlock. If a
> battery
> >> set is drained too low it will still try to charge. A service warning if
> >> you disconnect a battery this will still connect both if the either
> bank is
> >> getting charged from any source.
> >>>
> >>> While not rated for Lithium type batteries it will work. As it doesn't
> >> have a low voltage lock out it will also try to charge even when the
> >> battery BMS cuts out.
> >>>
> >>> There are many lithium battery choices even in the smaller sizes and
> >> pricing is becoming competitive with sealed or gelled AGM. However they
> >> really work best with dedicated charging systems and smart controllers
> if
> >> alternator charging is to be used. For the Class B RV's that I see if
> >> lithium house batteries are being used engine alternator charging is not
> >> provided, shore power (plug in) or solar only. I have also seen an
> >> additional alternator added for the house batteries only. These systems
> >> tend be very large, designed to replace the need for a generator. Able
> to
> >> run air conditioning (heat pump), 2 burner electric stove and an
> electric
> >> water heater. These systems are going to become more popular as propane
> >> gets further restricted along with the use of gasoline or Diesel
> >> generators. The RV industry has been working away from propane for many
> >> years for the larger rigs.
> >>>
> >>> Dennis
> >>>
> >>>
> >>> -----Original Message-----
> >>> From: Vanagon Mailing List <vanagon@gerry.vanagon.com <mailto:
> >> vanagon@gerry.vanagon.com>> On Behalf Of Eric Caron
> >>> Sent: Saturday, April 29, 2023 8:47 PM
> >>> To: vanagon@GERRY.VANAGON.COM <mailto:vanagon@GERRY.VANAGON.COM>
> >>> Subject: Electrical charging options?
> >>>
> >>> Hi folks,
> >>>
> >>>       several years ago Dennis installed a Blue Sea Battery Link
> >> charger in my 85.  It serves me very well.
> >>>
> >>> I'm interested in a similar option for my 84 so that batteries can be
> >> kept healthy.
> >>>
> >>> I think it is likely they have a newer model and possibly more options.
> >>>
> >>> I also don't know if there is one that also charges likely future
> >> lithium batteries.
> >>>
> >>> But, also a solid more basic unit is worth considering.
> >>>
> >>> What are you folks using these days?  Or more importantly, what would
> >> you purchase if installing something today?
> >>>
> >>> Here is the unit in my 85 from around 2018.
> >>>
> >>> Eric Caron
> >>> Blue Sea Systems
> >>> Batterylink
> >>> 10A Charger
> >>> 12V DC
> >>>
> >>> https://a.co/d/fpx2jVh <https://a.co/d/fpx2jVh> <
> https://a.co/d/fpx2jVh
> >> <https://a.co/d/fpx2jVh>>
> >>
>
>