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AGM Battery & charger info

 
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ceengland(at)bellsouth.ne
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PostPosted: Sat Feb 14, 2009 7:17 am    Post subject: AGM Battery & charger info Reply with quote
battery & charger info:
Quote:



> Is a special charger needed for AGM batteries such as the Odyssey? At
> www.odyessy.com <http://www.odyessy.com/> they recommend two types,
> but I?m wondering why something like a Schumacher
> http://store.schumachermart.com/se-1010-2.html won?t work just as well.

ALL battery technologies benefit from the use of
"smart" battery chargers that offer charge, top-off
and maintenance cycles. The charger you cited
doesn't cite this feature.

A really nice, low cost Schumacher product sold
at Wallmart is the 1562 series critters cited in

http://www.aeroelectric.com/articles/Batteries/Multiple_Battery_Myths_A.pdf
and illustrated here:

http://aeroelectric.com/Pictures/Battery_Chargers/Schumacher_Chargers/1562.jpg
Schumacher makes a range of smart chargers identifiable
by the word "maintainer" in their descriptions. These
include the SC600, SC1000, SC1200, etc.

The idea that one should finely tune a plug-in-the-wall
battery charger to the brand/technology of the battery
is not supported by the way we charge batteries in our
vehicles and expect years of service life.

Consider also a variety of small battery charger/maintainers
like:

http://aeroelectric.com/Pictures/Battery_Chargers/Battery_Minder/

http://aeroelectric.com/Pictures/Battery_Chargers/Battery_Tender_Jr/Battery_Tender-Junior.jpeg
Bob . . .

----------------------------------------)
( . . . a long habit of not thinking )
( a thing wrong, gives it a superficial )
( appearance of being right . . . )
( )
( -Thomas Paine 1776- )
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NeilsenRM(at)comcast.net
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PostPosted: Sun Feb 15, 2009 8:24 am    Post subject: AGM Battery & charger info Reply with quote
Charlie

Great information.

The battery maintainer I have on my airplane is the unit you mentioned.
http://aeroelectric.com/Pictures/Battery_Chargers/Schumacher_Chargers/1562.jpg
It has a adapter that I attach permanently to my battery with a keyed plug
that allows quick easy attachment without having to worry that it is
connected backwards. I notice when I attach the charger to the plane it will
go into charging mode even after a long flight. When I taxi back to my
hanger the planes charging system goes into discharge due to low RPMs. I
think I can detect a slightly increased power level after being hooked to
the battery maintainer than without. Any way after multiple batteries with
and without the battery maintainer the batteries last longer when kept on
the maintainer. The biggest longevity improvement is likely from attaching
the battery through the 3-4 months in the winter when the plane doesn't fly.

For the rest of my vehicles (cars, boat and tractor) that are left in
storage for some times 9 months at a time I have had very good luck
attaching a float charger. I used to disconnect the batteries but now I just
connect the float charger. Yes I fog the engines and change the oil. The
float chargers I use are:
http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=42292

Rick Neilsen
Redrive VW powered MKIIIC

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