nuckolls.bob(at)aeroelect
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 Posted: Tue Sep 06, 2011 5:46 pm Post subject: Initial experience with dual Odyssey PC680s powering RV-1 |
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At 12:30 PM 9/6/2011, you wrote:
I believe the Odyssey batteries require a special charger, and
"regular" battery maintainers are bad for them. It's possible its
been damaged if it's been float charged using a less-than-ideal
battery charger/maintainer.
You can find more about the branded Odyssey chargers here:
http://www.odysseyfactory.com/chargers.html
List of approved chargers here:
http://www.odysseyfactory.com/documents/ODYSSEYapproved12Vchargers_OCT2010_002.pdf
More information on charging can also be found in the Owner's Manual:
http://www.odysseyfactory.com/documents/US-ODY-OM-009_0611.pdf
The only 'fly' in this alphabet soup of chargers
assumes that you're really going to need to do
significant charging to your battery(ies). If
one's alternator(s) is working properly, the
ship's battery should never be subjected to
serious discharge. Getting the engine started
shouldn't take more than 5% or so of the battery's
capacity.
When you park the airplane, the battery should be
toped off and require no maintenance if you plan
to fly again in less than 90 days or so.
Long term storage can be supported by the smallest
of Battery-Minder style products. NOW . . . if
you routinely discharge your battery as a source
of portable power like for trolling motors, then
any AGM rated smart charger will do the job. Just
check it after being plugged in for a day or so
and see that the float voltage is not over 13.5
volts. It can be as low as 12.8 at room temperatures.
The point is that uncontrolled 'trickle charging'
of an RG battery will kill it. I'm surprised that
Odyssey even mentions the term as a useful
operating description.
Bob . . .
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