Home » Public Forums » GMCnet » three battery isolator
| three battery isolator [message #163194] |
Fri, 16 March 2012 15:27  |
sgltrac
Messages: 2797
Registered: April 2011
Karma: 1
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Senior Member |
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I was looking for a three battery isolater for my 77 Royale as it has a generator battery in the gen compartment as well as a house battery and engine battery in the engine compartment. Can someone send me a source or product model number so I can attempt to source one locally? Is there a way to wire three batteries to the stock isolator properly?
Thanks,
Sully
77 Royale basket case.
Future motorhome land speed record holder(bucket list)
Seattle, Wa.
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| Re: [GMCnet] three battery isolator [message #163200 is a reply to message #163199] |
Fri, 16 March 2012 16:03  |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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Senior Member |
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well with 2ea combiners
gene
On Fri, Mar 16, 2012 at 2:02 PM, gene Fisher <mr.erfisher@gmail.com> wrote:
> cheaper and better with a combiner
>
> http://gmcmotorhome.info/batt.htm#diode
>
> gene
>
>
>
>
> On Fri, Mar 16, 2012 at 1:27 PM, sgltrac <sgltrac@gmail.com> wrote:
>
>>
>>
>> I was looking for a three battery isolater for my 77 Royale as it has a
>> generator battery in the gen compartment as well as a house battery and
>> engine battery in the engine compartment. Can someone send me a source or
>> product model number so I can attempt to source one locally? Is there a way
>> to wire three batteries to the stock isolator properly?
>>
>> Thanks,
>>
>>
>> --
>> Sully
>> 77 Royale basket case.
>> Future motorhome land speed record holder(bucket list)
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
>
>
>
> --
> Gene Fisher -- 74-23,77PB/ore/ca
> “Give a man a fish; you have fed him for today --- give him a URL and
> -------
> http://gmcmotorhome.info/
> Alternator Protection Cable
> http://gmcmotorhome.info/APC.html
>
--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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| Re: [GMCnet] three battery isolator [message #163202 is a reply to message #163199] |
Fri, 16 March 2012 16:15 |
sgltrac
Messages: 2797
Registered: April 2011
Karma: 1
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Senior Member |
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What about this one Gene?
http://www.fisheriessupply.com/product/Newmar-1-3-120-BATTERY-ISOLATOR-3-BATTS-120A-ALT.aspx?cid=4558
Sully
77 Royale
On Fri, Mar 16, 2012 at 2:02 PM, gene Fisher <mr.erfisher@gmail.com> wrote:
> cheaper and better with a combiner
>
> http://gmcmotorhome.info/batt.htm#diode
>
> gene
>
>
>
> On Fri, Mar 16, 2012 at 1:27 PM, sgltrac <sgltrac@gmail.com> wrote:
>
> >
> >
> > I was looking for a three battery isolater for my 77 Royale as it has a
> > generator battery in the gen compartment as well as a house battery and
> > engine battery in the engine compartment. Can someone send me a source or
> > product model number so I can attempt to source one locally? Is there a
> way
> > to wire three batteries to the stock isolator properly?
> >
> > Thanks,
> >
> >
> > --
> > Sully
> > 77 Royale basket case.
> > Future motorhome land speed record holder(bucket list)
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> >
>
>
>
> --
> Gene Fisher -- 74-23,77PB/ore/ca
> “Give a man a fish; you have fed him for today --- give him a URL and
> -------
> http://gmcmotorhome.info/
> Alternator Protection Cable
> http://gmcmotorhome.info/APC.html
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
_______________________________________________
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Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Sully
77 Royale basket case.
Future motorhome land speed record holder(bucket list)
Seattle, Wa.
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| Re: [GMCnet] three battery isolator [message #163204 is a reply to message #163200] |
Fri, 16 March 2012 16:18 |
sgltrac
Messages: 2797
Registered: April 2011
Karma: 1
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Senior Member |
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Is the 120v battery charger in the coach considered as an alternator?
Reason being I see listings for two alternator three battery isolators.
Sully
77 Royale
On Fri, Mar 16, 2012 at 2:03 PM, gene Fisher <mr.erfisher@gmail.com> wrote:
> well with 2ea combiners
>
> gene
>
>
> On Fri, Mar 16, 2012 at 2:02 PM, gene Fisher <mr.erfisher@gmail.com>
> wrote:
>
> > cheaper and better with a combiner
> >
> > http://gmcmotorhome.info/batt.htm#diode
> >
> > gene
> >
> >
> >
> >
> > On Fri, Mar 16, 2012 at 1:27 PM, sgltrac <sgltrac@gmail.com> wrote:
> >
> >>
> >>
> >> I was looking for a three battery isolater for my 77 Royale as it has a
> >> generator battery in the gen compartment as well as a house battery and
> >> engine battery in the engine compartment. Can someone send me a source
> or
> >> product model number so I can attempt to source one locally? Is there a
> way
> >> to wire three batteries to the stock isolator properly?
> >>
> >> Thanks,
> >>
> >>
> >> --
> >> Sully
> >> 77 Royale basket case.
> >> Future motorhome land speed record holder(bucket list)
> >> _______________________________________________
> >> GMCnet mailing list
> >> Unsubscribe or Change List Options:
> >> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> >>
> >
> >
> >
> > --
> > Gene Fisher -- 74-23,77PB/ore/ca
> > “Give a man a fish; you have fed him for today --- give him a URL and
> > -------
> > http://gmcmotorhome.info/
> > Alternator Protection Cable
> > http://gmcmotorhome.info/APC.html
> >
>
>
>
> --
> Gene Fisher -- 74-23,77PB/ore/ca
> “Give a man a fish; you have fed him for today --- give him a URL and
> -------
> http://gmcmotorhome.info/
> Alternator Protection Cable
> http://gmcmotorhome.info/APC.html
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Sully
77 Royale basket case.
Future motorhome land speed record holder(bucket list)
Seattle, Wa.
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| Re: [GMCnet] three battery isolator [message #163207 is a reply to message #163202] |
Fri, 16 March 2012 16:47 |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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Senior Member |
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sure, problem is, all the batteries will not be charged from the house
charger.
using combiners, they will all be charged from any source, but none will
discharge each other.
read this set of slides,
http://www.gmcmhphotos.com/photos/showphoto.php?photo=26973&title=10-minute-combiner-ins&cat=4944
gene
On Fri, Mar 16, 2012 at 2:15 PM, Todd Sullivan <sgltrac@gmail.com> wrote:
> What about this one Gene?
>
>
> http://www.fisheriessupply.com/product/Newmar-1-3-120-BATTERY-ISOLATOR-3-BATTS-120A-ALT.aspx?cid=4558
>
>
> Sully
> 77 Royale
>
> On Fri, Mar 16, 2012 at 2:02 PM, gene Fisher <mr.erfisher@gmail.com>
> wrote:
>
> > cheaper and better with a combiner
> >
> > http://gmcmotorhome.info/batt.htm#diode
> >
> > gene
> >
> >
> >
> > On Fri, Mar 16, 2012 at 1:27 PM, sgltrac <sgltrac@gmail.com> wrote:
> >
> > >
> > >
> > > I was looking for a three battery isolater for my 77 Royale as it has a
> > > generator battery in the gen compartment as well as a house battery and
> > > engine battery in the engine compartment. Can someone send me a source
> or
> > > product model number so I can attempt to source one locally? Is there a
> > way
> > > to wire three batteries to the stock isolator properly?
> > >
> > > Thanks,
> > >
> > >
> > > --
> > > Sully
> > > 77 Royale basket case.
> > > Future motorhome land speed record holder(bucket list)
> > > _______________________________________________
> > > GMCnet mailing list
> > > Unsubscribe or Change List Options:
> > > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> > >
> >
> >
> >
> > --
> > Gene Fisher -- 74-23,77PB/ore/ca
> > “Give a man a fish; you have fed him for today --- give him a URL and
> > -------
> > http://gmcmotorhome.info/
> > Alternator Protection Cable
> > http://gmcmotorhome.info/APC.html
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> >
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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| Re: [GMCnet] three battery isolator [message #163208 is a reply to message #163207] |
Fri, 16 March 2012 16:56 |
sgltrac
Messages: 2797
Registered: April 2011
Karma: 1
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Senior Member |
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So with the combiner in conjunction with a 3 battery isolater the 120v
charger will charge all three batteries say when plugged into shore power
or using the generator?
Thanks,
Sully
77 Royale
On Fri, Mar 16, 2012 at 2:47 PM, gene Fisher <mr.erfisher@gmail.com> wrote:
> sure, problem is, all the batteries will not be charged from the house
> charger.
>
> using combiners, they will all be charged from any source, but none will
> discharge each other.
>
> read this set of slides,
>
> http://www.gmcmhphotos.com/photos/showphoto.php?photo=26973&title=10-minute-combiner-ins&cat=4944
>
> gene
>
>
>
> On Fri, Mar 16, 2012 at 2:15 PM, Todd Sullivan <sgltrac@gmail.com> wrote:
>
> > What about this one Gene?
> >
> >
> >
> http://www.fisheriessupply.com/product/Newmar-1-3-120-BATTERY-ISOLATOR-3-BATTS-120A-ALT.aspx?cid=4558
> >
> >
> > Sully
> > 77 Royale
> >
> > On Fri, Mar 16, 2012 at 2:02 PM, gene Fisher <mr.erfisher@gmail.com>
> > wrote:
> >
> > > cheaper and better with a combiner
> > >
> > > http://gmcmotorhome.info/batt.htm#diode
> > >
> > > gene
> > >
> > >
> > >
> > > On Fri, Mar 16, 2012 at 1:27 PM, sgltrac <sgltrac@gmail.com> wrote:
> > >
> > > >
> > > >
> > > > I was looking for a three battery isolater for my 77 Royale as it
> has a
> > > > generator battery in the gen compartment as well as a house battery
> and
> > > > engine battery in the engine compartment. Can someone send me a
> source
> > or
> > > > product model number so I can attempt to source one locally? Is
> there a
> > > way
> > > > to wire three batteries to the stock isolator properly?
> > > >
> > > > Thanks,
> > > >
> > > >
> > > > --
> > > > Sully
> > > > 77 Royale basket case.
> > > > Future motorhome land speed record holder(bucket list)
> > > > _______________________________________________
> > > > GMCnet mailing list
> > > > Unsubscribe or Change List Options:
> > > > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> > > >
> > >
> > >
> > >
> > > --
> > > Gene Fisher -- 74-23,77PB/ore/ca
> > > “Give a man a fish; you have fed him for today --- give him a URL and
> > > -------
> > > http://gmcmotorhome.info/
> > > Alternator Protection Cable
> > > http://gmcmotorhome.info/APC.html
> > > _______________________________________________
> > > GMCnet mailing list
> > > Unsubscribe or Change List Options:
> > > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> > >
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> >
>
>
>
> --
> Gene Fisher -- 74-23,77PB/ore/ca
> “Give a man a fish; you have fed him for today --- give him a URL and
> -------
> http://gmcmotorhome.info/
> Alternator Protection Cable
> http://gmcmotorhome.info/APC.html
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Sully
77 Royale basket case.
Future motorhome land speed record holder(bucket list)
Seattle, Wa.
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| Re: three battery isolator [message #163245 is a reply to message #163194] |
Sat, 17 March 2012 06:59 |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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Senior Member |
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| sgltrac wrote on Fri, 16 March 2012 16:27 |
I was looking for a three battery isolater for my 77 Royale as it has a generator battery in the gen compartment as well as a house battery and engine battery in the engine compartment. Can someone send me a source or product model number so I can attempt to source one locally? Is there a way to wire three batteries to the stock isolator properly?
Thanks,
|
Sully,
The stock isolator is a 2-bank device and only is involved when charging from the main engine. It is out of the picture otherwise. Isolators require that the charging source have a down stream sense lead. Not many converter/chargers have this capability.
Now that we are over that, If you still have a period Onan, it is quite capable of charging the APUs own start battery when it is running and if you run it about three or four times a year, you will still be good.
As to a three battery isolator, I may have one in my shop that is a left-over from a proposed DC rework that didn't happen. If you are interested, I'll make you a real deal.
I have nothing against combiners, and that might be a good enough answer, but they may also be unnecessary. If you could, I would like to know what you have in mind as what you would like the system to do and what you would like to be able to do with it. I'm sure I can point you at parts and wiring to make it happen. If you are going to buy the copper and do the work, my quote would be REAL LOW. 
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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| Re: [GMCnet] three battery isolator [message #164441 is a reply to message #163269] |
Wed, 28 March 2012 09:45 |
sgltrac
Messages: 2797
Registered: April 2011
Karma: 1
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Senior Member |
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Thanks Dan. Sorry for the late reply. Hopefully bump into you at Shawnee Thursday
Todd
Sully
77royale
Sent from my Kindle Fire
_____________________________________________
From: Dan Gregg <gregg_dan@hotmail.com>
Sent: Sat Mar 17 10:34:01 PDT 2012
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] three battery isolator
Sully, a little late on this and you may have it figured out by now:
I have a combiner between the "hot" and my rear garden tractor battery, that fires the Onan. Lets the charge get to the battery but keeps the juice from coming back when dry camping. You could also use a switch if you can remember to turn it off and on. The little combiner is cheap from Jim K's place. Gene F. helped me figure it out, in my head. This might save you from all of the reading that I went through on Gene's site. But, if you have time it is good reading.
Dan
--
Dan & Teri Gregg
Soft White LED Lighting
http://danandteri.blogspot.com/
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Sully
77 Royale basket case.
Future motorhome land speed record holder(bucket list)
Seattle, Wa.
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