L-16 charging voltages [RE-wrenches]

[Kurt Nelson]

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While they should be checked more frequently, I only add water to my
batts perhaps four times a year.  This even with the voltages held
higher than factory default settings on the charge controller and
occasional EQs approaching 16/32 volts.  I think there is way too much
emphasis towards "maintenance free" batteries resulting in added expense
and a movement away from the tried and proven.

Kurt Nelson

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Kurt Nelson
PO Box 309
Cornucopia, WI 54827
715-742-3406
sunwise at cheqnet.net


-----Original Message-----
From: Doug Pratt [mailto:dmpratt at sbcglobal.net] 
Sent: Thursday, May 19, 2005 7:57 PM
To: RE-wrenches at topica.com
Subject: RE: L-16 charging voltages [RE-wrenches]

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A better question is why did someone install wet-cell L-16s on an
emergency
back up system? They're going to suffer a short, ugly life no matter
what
you do! Wet-cell batteries need exercise to stay healthy...they aren't
going
to get it. They also need regular watering...experience leads me to
predict
they won't get that either. Wet-cells and backup systems are an unwise
combination. (Yeah, I've done it too, but that was years ago. Now I know
better!)

Cheers,
Doug Pratt


Dave,

What you say makes good sense to me... and I have found similar results
with
the
systems I do and maintain. I have also read contradictory advice on this
list
that L-16's being floated (for batter back up grid intertied systems)
need
to be
EQ'd once a month to "stir" the electrolyte, yet if they are being
floated
should there be a small electrolyte circulation happening anyway so why
the
EQ?

Todd

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