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| Re: [GMCnet] combiner [message #342453 is a reply to message #342451] |
Thu, 11 April 2019 16:35   |
Emery Stora
Messages: 959
Registered: January 2011
Karma: 4
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Senior Member |
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It doesn’t make any difference if you connect it to the isolator terminals or directly to the battery because the wires from the isolator lead to the battery.
I don’t use a combiner as it will allow current to flow either way when it is connected. So, if you have, for example a bad engine battery, it would draw from the house battery bank to the engine battery and possibly drain the house batteries.
Emery Stora
77 Kingsley
Frederick, CO
> On Apr 11, 2019, at 1:53 PM, James Hupy via Gmclist wrote:
>
> Something just seems wrong to me about combining an isolator. Don't know
> what it might possibly be.
> Jim Hupy
> Salem, Or
>
>
> On Thu, Apr 11, 2019, 12:45 PM Kathy and Fred Estabrook via Gmclist gmclist@list.gmcnet.org> wrote:
>
>> Many thanks to all those who helped. Had a shakedown cruise this morning
>> and everything works great. Thanks again.
>> Fred Estabrook
>> 76 El
>> Florence AZ
>> _______________________________________________
>> GMCnet mailing list
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| Re: [GMCnet] combiner [message #342454 is a reply to message #342453] |
Thu, 11 April 2019 17:20 |
dsmithy
Messages: 210
Registered: July 2012
Location: Lincoln Nebraska
Karma: 0
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Senior Member |
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I’m not sure I understand Emery.
The combiner I put on says it will only “combine” if one side or the other is 13.5 volts. If both are less it does nothing and allows no current to pass either way. The way I understand it it will open only at 13.5 volts and feed to the side with the lower voltage till they both reach 13.5 volts. I like the idea very much and have been comforted with the thought that power from either the 120v charger or the engine alternator will top off everything. As for a failure mode, I’ll let you know when that happens.
Doug
Douglas & Virginia Smith
dsmithy18 at gmail
Lincoln Nebraska
’73 “Canyonlands” since ‘95: “Wanabizo”, Anishinabe Indian for “He gets lost driving” Yes, really.
Quadrabag/6 wheel disks/3;70 final/Paterson QuadraJet/Sundry other
P&W PT6, no wait, that's the wish list...
> On Apr 11, 2019, at 4:35 PM, Emery Stora via Gmclist wrote:
>
> It doesn’t make any difference if you connect it to the isolator terminals or directly to the battery because the wires from the isolator lead to the battery.
>
> I don’t use a combiner as it will allow current to flow either way when it is connected. So, if you have, for example a bad engine battery, it would draw from the house battery bank to the engine battery and possibly drain the house batteries.
>
> Emery Stora
> 77 Kingsley
> Frederick, CO
>
>> On Apr 11, 2019, at 1:53 PM, James Hupy via Gmclist wrote:
>>
>> Something just seems wrong to me about combining an isolator. Don't know
>> what it might possibly be.
>> Jim Hupy
>> Salem, Or
>>
>>
>> On Thu, Apr 11, 2019, 12:45 PM Kathy and Fred Estabrook via Gmclist > gmclist@list.gmcnet.org> wrote:
>>
>>> Many thanks to all those who helped. Had a shakedown cruise this morning
>>> and everything works great. Thanks again.
>>> Fred Estabrook
>>> 76 El
>>> Florence AZ
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
>
> _______________________________________________
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Douglas & Virginia Smith,
dsmithy18 at gmail,
Lincoln Nebraska,
’73 “Sequoia” since ‘95: "Wanabizo";
Quadrabag/6 wheel disks/3:70 final/Paterson QuadraJet/Thorley’s/Alloy wheels/Sundry other
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| Re: [GMCnet] combiner [message #342455 is a reply to message #342454] |
Thu, 11 April 2019 17:30 |
emerystora
Messages: 4442
Registered: January 2004
Karma: 13
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Senior Member |
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OK. Let’s suppose that your converter is providing 13.5 volts or more to your house battery but you have a bad cell in your engine battery. Doesn’t that mean that it will keep trying to push current to the engine battery? What effect will that have on your house battery or your converter?
I am asking because I don’t have one and don’t know the answer
Emery Stora
> On Apr 11, 2019, at 4:20 PM, Douglas Smith via Gmclist wrote:
>
> I’m not sure I understand Emery.
> The combiner I put on says it will only “combine” if one side or the other is 13.5 volts. If both are less it does nothing and allows no current to pass either way. The way I understand it it will open only at 13.5 volts and feed to the side with the lower voltage till they both reach 13.5 volts. I like the idea very much and have been comforted with the thought that power from either the 120v charger or the engine alternator will top off everything. As for a failure mode, I’ll let you know when that happens.
> Doug
>
>
> Douglas & Virginia Smith
> dsmithy18 at gmail
> Lincoln Nebraska
> ’73 “Canyonlands” since ‘95: “Wanabizo”, Anishinabe Indian for “He gets lost driving” Yes, really.
> Quadrabag/6 wheel disks/3;70 final/Paterson QuadraJet/Sundry other
> P&W PT6, no wait, that's the wish list...
>
>> On Apr 11, 2019, at 4:35 PM, Emery Stora via Gmclist wrote:
>>
>> It doesn’t make any difference if you connect it to the isolator terminals or directly to the battery because the wires from the isolator lead to the battery.
>>
>> I don’t use a combiner as it will allow current to flow either way when it is connected. So, if you have, for example a bad engine battery, it would draw from the house battery bank to the engine battery and possibly drain the house batteries.
>>
>> Emery Stora
>> 77 Kingsley
>> Frederick, CO
>>
>>> On Apr 11, 2019, at 1:53 PM, James Hupy via Gmclist wrote:
>>>
>>> Something just seems wrong to me about combining an isolator. Don't know
>>> what it might possibly be.
>>> Jim Hupy
>>> Salem, Or
>>>
>>>
>>> On Thu, Apr 11, 2019, 12:45 PM Kathy and Fred Estabrook via Gmclist >> gmclist@list.gmcnet.org> wrote:
>>>
>>>> Many thanks to all those who helped. Had a shakedown cruise this morning
>>>> and everything works great. Thanks again.
>>>> Fred Estabrook
>>>> 76 El
>>>> Florence AZ
>>>> _______________________________________________
>>>> GMCnet mailing list
>>>> Unsubscribe or Change List Options:
>>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>>>
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
>
> _______________________________________________
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| Re: [GMCnet] combiner [message #342457 is a reply to message #342450] |
Thu, 11 April 2019 17:56 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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Emery, probably not. If the engine battery were bad , the voltage drop would cause the combiner to drop out. The wire leads are on a Yandina "current limiting" which would drop the votlage the logic sees. This is true in either direction as symmetrical. In reality driving down the road the combiner will latch but do very little as both isolator diodes are forwad flowing to their respective batteries from alt. However if you go combiner only, the full current to the house battery has to go through the combiner. Don't like that idea.
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: [GMCnet] combiner [message #342458 is a reply to message #342452] |
Thu, 11 April 2019 17:54 |
Gary Worobec
Messages: 867
Registered: May 2005
Karma: -1
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Senior Member |
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Might be late to the party but did you look at the Yandina combiner
https://www.yandina.com
Gary
> On Apr 11, 2019, at 1:07 PM, D C _Mac_ Macdonald via Gmclist wrote:
>
> It enables charging of both vehicle and house battery bank regardless of whether the charging source is the vehicle alternator OR the low voltage 120 Volt AC to 13.8 Volt DC power supply (ridiculously named "converter" when used in an RV!).
>
> D C "Mac" Macdonald
> Amateur Radio K2GKK
> Since 30 November '53
> USAF and FAA, Retired
> Member GMCMI & Classics
> Oklahoma City, OK
> "The Money Pit"
> TZE166V101966
> ________________________________
> From: Gmclist on behalf of James Hupy via Gmclist
> Sent: Thursday, April 11, 2019 14:53
> To: gmclist@list.gmcnet.org
> Cc: James Hupy
> Subject: Re: [GMCnet] combiner
>
> Something just seems wrong to me about combining an isolator. Don't know
> what it might possibly be.
> Jim Hupy
> Salem, Or
>
>
> On Thu, Apr 11, 2019, 12:45 PM Kathy and Fred Estabrook via Gmclist gmclist@list.gmcnet.org> wrote:
>
>> Many thanks to all those who helped. Had a shakedown cruise this morning
>> and everything works great. Thanks again.
>> Fred Estabrook
>> 76 El
>> Florence AZ
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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| Re: [GMCnet] combiner [message #342461 is a reply to message #342459] |
Thu, 11 April 2019 20:00 |
Gary Worobec
Messages: 867
Registered: May 2005
Karma: -1
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Senior Member |
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On the C100 I use there is a wire on it that you can add a switch to if you would like to manually switch it join the two battery banks.
Gary
> On Apr 11, 2019, at 5:11 PM, D C _Mac_ Macdonald via Gmclist wrote:
>
> I strongly suspect that the reason the Yandina combiner leads must remain intact as provided indicates that what would be a MINOR voltage drop along those leads provides the signal for the combiner to switch the charging to the battery it is supposed to charge at any one time.
>
> D C "Mac" Macdonald
> Amateur Radio K2GKK
> Since 30 November '53
> USAF and FAA, Retired
> Member GMCMI & Classics
> Oklahoma City, OK
> "The Money Pit"
> TZE166V101966
> ________________________________
> From: Gmclist on behalf of John R. Lebetski via Gmclist
> Sent: Thursday, April 11, 2019 17:56
> To: gmclist@list.gmcnet.org
> Cc: John R. Lebetski
> Subject: Re: [GMCnet] combiner
>
> Emery, probably not. If the engine battery were bad , the voltage drop would cause the combiner to drop out. The wire leads are on a Yandina "current
> limiting" which would drop the votlage the logic sees. This is true in either direction as symmetrical. In reality driving down the road the
> combiner will latch but do very little as both isolator diodes are forwad flowing to their respective batteries from alt. However if you go combiner
> only, the full current to the house battery has to go through the combiner. Don't like that idea.
> --
> John Lebetski
> Woodstock, IL
> 77 Eleganza II
>
>
> _______________________________________________
> GMCnet mailing list
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