| Re: [GMCnet] Isolater vs Alternator [message #326707 is a reply to message #326699] |
Sun, 03 December 2017 19:22   |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma:
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Senior Member |
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It is my understanding that the Yandina combiner has a 30 second or so delay before combining (putting the batteries
in parallel). If the combined load is too high drawing the system voltage below the combine point (usually 13.2
or 13.3 volts) I "think" there is also a delay before uncombining. This was delay design was to prevent or reduce
chatter of off and on and off again repeatedly. It also allows the alternator to put an initial charge
into the single battery that was just used for starting and to reduce the rate of charge somewhat to it
before bringing a second battery online. It usually works OK but if the one coming online is discharged
enough or shorted you will still experience the cycling and brief drain described.
I do not know if this is true on other brands of combiners. Combiners are fine when they work as designed and
they have a few added features. They also introduce a few new modes of possible failure.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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