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Re: [GMCnet] Isolater vs Alternator [message #326641 is a reply to message #326632] Sat, 02 December 2017 11:21 Go to previous messageGo to previous message
emerystora is currently offline  emerystora   United States
Messages: 4442
Registered: January 2004
Karma:
Senior Member
But Ken —

Even with an isolator "the chassis battery is always connected to the voltage sense line to the alternator”.

I would think that if you have a combiner then the voltage sense line is connected to both the chassis battery and the house battery which would then “hide” a weak chassis battery from the alternator.
Am I not correct on this?

Emery Stora
77 Kingsley
Frederick, CO

> On Dec 2, 2017, at 6:10 AM, Ken Henderson wrote:
>
> Tom,
>
> WIth the installation of a combiner, the chassis battery is always
> connected to the voltage sense line to the alternator, thus eliminating one
> of the two most common causes of sense circuit failure. The second, much
> less common, failure, the connection at the alternator, can only be managed
> by rare preventative maintenance: Disconnect and examine the connector,
> replacing it if corroded or weak, and applying some contact
> cleaner/lubricant, such as CRC 2-26. Gene Fisher's APC (Alternator
> Protection Cable) offers new, good quality, connectors so its installation
> should help, despite the addition of one more pair (Pins 1 & 2) of
> connections. The Nichrome wire protection is not the only benefit of the
> APC! :-)
>
> Ken H.
>
> ​PS: Tom, I just noticed your signature block: "Elkton, FL". When did
> you move? Or are you playing Snowbird? Will we get to see you at the
> ​January GMCSS/GMCDL rally in St. Augustine? KH
>
>
> On Sat, Dec 2, 2017 at 7:54 AM, Tom Lins wrote:
>
>>
>> The question that comes to my mind is there a way to protect against the
>> sense circuit failure?
>> Or is vigilance your best defense?
>> --
>>
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