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. > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: RE-wrenches@lists.re-wrenches.org > > Options & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > > _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
