 Battery Isolators - solenoid type versus diode type
"Sandy A. Nicolaysen" <sandynic@erols.ccom> wrote:
> On Sun, 14 Sep 2003 02:04:26 GMT, "D.J. Osborn"
> <davidjosborn@sbcglobally.net> wrote:
>
> >"Sandy A. Nicolaysen" <sandynic@erols.ccom> wrote:
> >
> >> John: I went the relay route myself. Nobody has mentioned this yet
> >> in this thread, but I believe you also lose 0.5 volts across the solid
> >> state isolator. Your house batteries never get fully charged.
> >
> >
> >It all depends upon where the voltage sensing is accomplished. If the
system
> >is set up for remote sensing, then the batteries *will* receive the
correct
> >charge.
>
>
> Correct. But if I remote sense the charging voltage on the other side
> of the isolator, I'll boil the starting battery due to over voltage.
That's not correct. There's a diode between each battery and the alternator,
and so each battery sees a lower voltage than is put out by the alternator.
--
D.J., N8DO; FMCA 147762
davidjosborn at sbcglobal dot net
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