AGM charging type WAS (Re: Group Buys - thanks and AGM batteries next???)

[p_a_lazar]

Pete,

*IF* your charger (inverter/charger) has only 2 settings, then flooded
lead acid is the correct setting, the other is usually GELL cell. Gell
cells and AGM may be treated alike and neither needs liquid or
checking, but they are different charge voltages.

When faced with the same problem, I called the manufacturer of the AGM
(Concorde) batteries and asked them. They answered it looks like a
flooded cell battery to the world and charges at the same voltage and
rates. Have been running them off my dual 3000 inverter/chargers set
for flooded the past 4 years and all is as good as new.

Don't take my word for it, call the manufacturer.

Paul
97wb43

--- In WanderlodgeForum@yahoogroups.com, Pete Masterson
wrote:
>
> The previous owner of my coach installed AGMs for both engine and
> house batteries. Unfortunately, they were badly mistreated between
> the time the coach was traded in and I bought it --- to make matters
> worse, the Link 2000R controller had been incorrectly programed (or
> had been "reset") so that it was charging as if the AGMs were flooded
> batteries. Result, batteries that didn't hold their charge. I
> purchased new AGMs from an Internet source. (My coach uses 6 size 4D
> batteries for the house.) I purchased FullRiver AGMs from DC Battery
> <http://www.dcbattery.com> The price included delivery (shipping was
> from Florida to California).
>
> The only snag I ran into was the new batteries were slightly wider
> than the old ones ... and I had to modify the 'trays' that hold them.
> Not difficult, but I had to find a friend with a welding rig to do
> the job.
>
> You can get information on the FullRiver batteries here:
> <http://www.dcbattery.com/fullriver.html>
>
> I selected these because they're designed for deep cycle in solar
> installations. Seemed like an appropriate choice. My chassis
> batteries don't seem to have suffered the same fate as the house
> batteries, so I didn't change them. I think they're 3 type 34s...
>
> ===============================================
> Pete Masterson, Author of
> Book Design and Production: A Guide for Authors and Publishers
> Aeonix1@...
> Aeonix Publishing Group http://www.aeonix.com
> ===============================================
>
>
> On May 7, 2007, at 11:09 PM, mbrund wrote:
>
> > My concern with a group buy AGM would be the cost of shipping could
> > eat each person alive to the point there is no savings over local
> > purchase. But if I can get a good quality battery for the right
> > price I am down with that.
> >
> > I need 8 house batteries, I use flooded for starters as they are in
> > the engine bay and will be hot most of the time.
>