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Interesting info Robert. Thanks.
Regarding Item #2. I have been using a Battery Tender since first
flight in 1999. I replaced the original Odyssey battery after nines years
of use. It was still going strong, but just got a little nervous after
that time period. Wow, just think how long it would last if I had been
using their recommended charger instead of the Battery Tender?
Gary Edwards
LNC2
----- Original Message -----
Sent: Tuesday, June 22, 2010 10:43
AM
Subject: [LML] Odyssey batteries
info
The folks at EnerSys/Odyssey Batteries had some additional info
on the
PC680 batteries:
1.) If you plan a firewall mounting
beware of the temperature limitation
for their plastic version
PC680:
"Metal jackets are required for operating temperatures above 113F
which
is the max operating temperature of the PC680 without it. It is a
little
conservative but these batteries were not originally produced for
the
powersports industry and the higher temperatures that are
often
associated with those types of applications. The issue being that
the
plastic of the bottom case can become soft and can distort and bulge
at
higher temps and the metal jacket prevents that." Odyssey does
produce
the PC680 with a metal housing. The size is larger by about 3
to 4mm
for both the length and width. Overall dimensions in the
printed
literature are 184.7mm by 79.0mm with the metal jacket.
2.)
Odyssey reccomends against using a Battery Tender brand and similar
units
to recharge and to top their batteries. The cycling is less than
optimal
and would result in a shorter battery life. The sugegested I
contact
Bob Besch at Interacter, Inc. who produces 12V, 24V, 36V, and
48V chargers
that can be programmed with an ODYSSEY chip. For a 24v buss
they suggest a
7A, 24V charger. Part number is their Professional
Series
PS2408-Odyssey. Bob's number is (203) 630-0199. List price
is
$180 but for Lancairians the pre-Oshkosh sale price is $145.
Limited
time only, etc. etc. etc.
Details from their Web site (http://www.interacter.com):
Our PS
charger utililizes our patented "3 Stage Plus" technology to
interact with
the battery and provide exactly the right amount of
charge. Interacter "3
Stage Plus" charging technology eliminates
undercharging, overcharging, or
damage to the battery, and is completely
safe. The Interacter PS can be
used to recharge virtually any type
lead-acid battery including
conventional liquid electrolyte,
maintenance-free absorbed electrolyte,
deep-cycle,
and gelled type batteries.
Interacter's
microprocessor circuitry with patented program in EPROM,
controls four
separate charging stages:
FIRST: A constant current bulk charge is applied
to achieve the fastest
possible return of energy to the battery.
SECOND:
This constant voltage stage is proportionally timed and
temperature
compensated, minimizing electrolyte breakdown and gas
emission.
THIRD:
The final standby float charge stage will replace standing losses
and keep
the battery in a fully charged state & "Ready".
PLUS: As soon as the
battery is connected, a de-sulfation circuit
encourages the breakdown of
large sulfate crystals which can develop
during prolonged periods of deep
discharge.
Robert M. Simon
ES-P
N301ES
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