| Re: [GMCnet] Battery charging confusion [message #104973] |
Wed, 03 November 2010 18:07  |
rallymaster
Messages: 662
Registered: February 2004
Location: North Plains, ORYGUN
Karma:
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Senior Member |
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IIRC, Bob is talking about solar charge controllers, when he says 14.8v
RonC
On Wed, 03 Nov 2010 17:15:39 -0500 Ken Burton <n9cv@comcast.net> writes:
>
>
> jayrabe wrote on Wed, 03 November 2010 15:25
> > Still confused about battery charging. I'm persuaded by Handy Bob
> that we should follow the battery mfr recommendations and push in
> 14.8v for an hour or so before we float at 13.6 or so. Problem is
> that I can't find any adjustments on my Iota or in the documentation
> to allow that kind of output, or any mention of that as an optional
> output mode in any other brand charger either.
> >
> > Does anybody have their chargers set up for 14.8? What brand/model
> charger?
> >
> > Thanks,
> >
> > J
> > 76 PB
> > Portland, OR
>
> 14.8 is a little high. Normal charging is between 13.8 and 14.2.
> You can get by at 14.8 for a short while IF the battery is cold and
> depleated enough. If you do not know the state of charge on the
> battery and have no way to monitor the state while while charging, I
> would not go that high. There is really no advantage to going that
> high other than an initial quicker warm up and slightly quicker
> charge.
>
> You are going to have to drop back to a lower voltage (13.6-13.8)
> once the battery starts gassing or gets too warm. When it is fully
> charged you will need to drop every further to about 13.2 as a
> maintenance charge of about 13.2.
>
> Note: On a fully charged room temperature battery you can go to 14.4
> for very brief periods like 15 minutes or so without hurting it.
>
> I would not go to 14.8 unless you are going to sit there and watch
> it while it charges.
> --
> Ken Burton - N9KB
> 76 Palm Beach
> Hebron, Indiana
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Ron & Linda Clark
1978 Eleganza II
North Plains, ORYGUN
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Ron & Linda Clark
North Plains, ORYGUN
78 Eleganza II
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