I have had one experiance with equalizers, the batteries be came very unequal.
(over time of course)
From: R Ray Walters <r...@solarray.com>
To: RE-wrenches <re-wrenches@lists.re-wrenches.org>
Sent: Saturday, September 3, 2011 5:55 PM
Subject: Re: [RE-wrenches] unique battery bank design question
Systems I tried years ago with Vanner equalizers, still ended up being unequal.
I pulled them all years ago. It seems to be about as much a problem as not
balancing your battery cables so each battery string has the same wire
resistance,
I know that you couldn't imagine a few amps on 12" of 2/0 making a difference,
but after 5 years the battery damage is very consistent and identifiable.
The only load I would consider tapping would be metering, or maybe a low
milliamp relay. I wouldn't go over 100 mA, and even then I bet you would see
some long term imbalance. I've seen imbalances due to some batteries just
being closer to a cold outside wall.
R. Walters
r...@solarray.com
Solar Engineer
On Sep 2, 2011, at 10:45 AM, Michael Welch wrote:
> What the Vanner Voltmaster equalizer does is track the voltage differences
> between two parts of the string, and provides current from the other part to
> the first part when needed. If a tap decreases the voltage in part of the
> string, the other part of the string is used to help make up for it --
> equalizing the two.
>
> Gosh, I hope I described that well enough, not being a real wrench and all.
>
> http://www.vanner.com/battery-equalizers/
>
> Rob Shappell wrote at 06:53 AM 9/2/2011:
>
>> As far as I know, The DC/DC and the Equalizers do basically the same thing
>> (step up or down). I recollect that the Equalizers are adjustable and can be
>> used as a load dump. Enermaxer comes to mind. It's been a long time.......
>> but a refresher will be gladly accepted from those in the know.
>
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