Re: Odyssey 680 pickle

Bob Holliston

Sounds like Odyssey might have a quality control problem. My 925 works fine after five years, has sat for up to three months in the winter, never seen a battery maintainer, and always starts on the second blade. Also, my 2004 Dodge Dakota has the original battery. Bob

On Sat, May 14, 2016 at 2:23 PM, Jim Jim.Rodrian@... [canard-aviators] <canard-aviators-noreply@...> wrote:


What is the basis for your statement "the connection between the cells are designed to fail"?

I have two Odyssey PC 680's in my Defiant.  I replaced both of them last year.  Both had 5 years (250 hours Hobbs time) of "flying" time on them.  One was seven years old, the other was six years old.  Both were working perfectly!  The Lycoming O-360 engines usually started in 2 blades of rotation (with Slick mags.). On one occasion the plane sat in the hanger (60 F) for 6 months without an engine start and no "trickle" charging of the batteries.  After that 6 month period, both engines started in 2 or 3 blades of rotation.

The batteries in the Defiant are charged at 14.5 volts during flight.  Whenever the avionics are ON (for 2 year pitot/static/transponder check) the battery supplying the load is charged with the Odyssey "smart charger" designs specifically to charge the Odessey battery.

Jim Rodrian
Defiant N403R

On May 13, 2016, at 4:40 PM, Steve Hall stevehall@... [canard-aviators] <canard-aviators-noreply@...> wrote:


The connections between the cells are designed to fail!!!
If you get three years on any battery you are lucky!!


On May 13, 2016, at 5:34 PM, PC uh1cw2@... [canard-aviators] <canard-aviators-noreply@...> wrote:


I gave up on Odyssey batteries 6 years ago. I replace Three Odyssey 925 batteries in 9 years and decided enough was enough. By the way, I had tenders on the last two 24/7.  I went back to concord 35AXC type. It’s large and powerful.  I have had it in the plane for 6 years without issue. It has enough cranking amps to keep the ignition and all electrical in the plane going for at least 2 hours.  Odyssey batteries are way over rated and cost a lot of money for poor quality and minimum longevity.  Don’t let the bright orange color fool you into believing you’re getting anything special, you’re not!


You are better off with a lawn mower / tractor battery than purchasing an Odyssey.


Just expressing my personal experience with the product.




Phil Camarda

Long EZ Driver


From: canard-aviators@... [mailto:canard-aviators@...] On Behalf Of vance atkinson nostromo56@... [canard-aviators]
Sent: Friday, May 13, 2016 3:57 PM
To: Canard Aviators; Cozy Builders
Subject: [c-a] Odyssey 680 pickle



Hey guys, 

I went out to the plane this morning to go fly and my Odyssey PC 680 was dead...well, almost, it had 5.2 volts left in it.  I was ticked off after doing all the prep for the flight and not being able to go!

This is a puzzlement as I flew it last weekend with no problems, and no, I didn't leave anything "on".  I checked all the usual suspects and came up with nothing as to why it died.

The puzzlement is this battery is only 2.5 years old and not abused. Only gingerly used by a Lil' ol' lady from Pasadena once a year......LOL

I have used this type battery in the past and it usually gets to about 5 years  before crapping out. I did buy this from a discount house which makes me suspicious.

Anyway, scrubbed flight and have a new bat. on the way from ACS.

Vance Atkinson


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