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  #11  
Old 01-26-2014, 06:22 PM
cccjbr6 cccjbr6 is offline
 
Join Date: Dec 2013
Location: Birmingham, AL
Posts: 169
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Rather that manually desulfating the battery might a product like BatteryMinder work? I would be interested in what Odyssey has to say about that product. We kept one on our Concord battery in our Cirrus for several years and enjoyed excellent service life. http://batteryminders.com/
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  #12  
Old 02-03-2014, 03:55 AM
Smilin' Jack Smilin' Jack is offline
 
Join Date: Jan 2011
Location: Cumming, Georgia
Posts: 869
Unhappy

I have had my PC680 for almost 1.5 years now and have kept it on a Battery Tender. Several of the others here at KJZP with the PC680 also have Battery Tenders on their batteries. The only problem was this one occurance.

When I finally got the Transponder certified and the ADS-B check out at an avionics shop after about an hour and 15 minutes with all the avionics running the battery would not crank the plane. They had a charger and we hooked it up to the leads that I use for the battery tender...

Still no luck...

Finally with just the aircraft sitting there we got a blade to finally turn over and it started... The amp meter showed a 30 amp charge when we turned on the alternator switch Normally this is about 4 amps after cranking.

Got back to Jasper hooked up the battery tender and it showed that the battery was dead or not connected properly. ( I assumed we killed the battery )
Went down the street bought another battery hooked it up and the battery tender again...( it too showed the battery was hooked up wrong or dead).

I am stumped... I hook up a 10 amp car charger to the battery tender leads that are connected to the battery... still Nothing... I am really stumped...

then I brushed against an inline fuse holder..... that is installed on the Battery Tender wires to the battery..... opened up the cover and the fuse was blown.... It was a 5 amp fuse...

The avionics shop 25 amp rapid charger connected to the battery tender wires to my battery fried the fuse...

Replaced the fuse..... everything charged up....

Live and learn...

Jack
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Smilin' Jack & Anita Hunt
N507H RV7, KJZP Jasper, GA
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  #13  
Old 02-03-2014, 07:16 AM
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Walt Walt is offline
 
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Location: Dallas/Ft Worth, TX
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Quote:
Originally Posted by Smilin' Jack View Post
When I finally got the Transponder certified and the ADS-B check out at an avionics shop after about an hour and 15 minutes with all the avionics running the battery would not crank the plane. They had a charger and we hooked it up to the leads that I use for the battery tender...
Just FYI, I would never, ever, run a customers airplane on the battery for an hour or more (about 10 minutes is my limit without putting it on a GPU).. the results were quite predictable.
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Walt Aronow, DFW, TX (52F)

EXP Aircraft Services LLC
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  #14  
Old 02-03-2014, 02:27 PM
Smilin' Jack Smilin' Jack is offline
 
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Location: Cumming, Georgia
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Default Walt

Walt you are correct lessons learned....
Jack
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N507H RV7, KJZP Jasper, GA
EAA690
APRS/ WB4JKY
Retired Corporate Pilot CFI-AI, MEL
CE500, LRJT, HS25, C650, SBJT, CL60
Hunt Aviation, LLC.
Pilot Service, IPC's Biennials.
Comm Glider
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  #15  
Old 12-09-2014, 09:36 AM
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flyingriki flyingriki is offline
 
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Location: California
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Quote:
Originally Posted by Brantel View Post
I used an old headlamp off of something. It drew about the correct amount of current. You don't want a high discharge rate or the procedure will not be as effective. The efficiency of this procedure is tied to the discharge rate because the efficiency of the Odyssey goes down with increased rates of discharge.

At least that is what the folks at Odyssey told me....
I need to try this. Any idea what in the airplane would put this 3 amp draw on it? Maybe just the master or position lights or....?
Thanks!
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  #16  
Old 12-09-2014, 10:25 AM
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Mike S Mike S is offline
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Location: Dayton Airpark, NV A34
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Quote:
Originally Posted by flyingriki View Post
Any idea what in the airplane would put this 3 amp draw on it? Maybe just the master or position lights or....?
I get a gut reaction here about doing the battery cycling while it is in the plane.

I would remove the battery, and do the rejuvenation cycle on the bench.

As to the load, 3A load on a 12V system is 36 watts-------easier to find something labeled in watts than amps. A headlight was mentioned earlier, probably a good place to look for something putting out 36W.

Good luck, let us know how it works for you.

However you end up doing this, please be safe.
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VAF 909

Rv-10, N210LM.

Flying as of 12/4/2010

Phase 1 done, 2/4/2011

Sold after 240+ wonderful hours of flight.

"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
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  #17  
Old 12-09-2014, 04:27 PM
Mjuckes Mjuckes is offline
 
Join Date: Mar 2013
Location: Houston,MS
Posts: 63
Default Headlight

I used a headlight. Three discharge/charges, works like it did new.
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  #18  
Old 12-09-2014, 06:05 PM
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flyingriki flyingriki is offline
 
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Quote:
Originally Posted by Mike S View Post
I get a gut reaction here about doing the battery cycling while it is in the plane.

I would remove the battery, and do the rejuvenation cycle on the bench.

As to the load, 3A load on a 12V system is 36 watts-------easier to find something labeled in watts than amps. A headlight was mentioned earlier, probably a good place to look for something putting out 36W.

Good luck, let us know how it works for you.

However you end up doing this, please be safe.
New battery just landed on the porch. Will switch them out then try the rejuvenation on the bench as you suggest. Did you do this to the one I gave you a couple years ago? Sounds like what it need. Hope it's not the starter that's bad. I asked the starter and alternator manufacturers about overhaul and they both said their products should go 2000 hours. They have 800 on them. This battery did sit several months while I overhauled the engine. I did that math too but don't have any 30 something watt gadgets. May just go to the auto parts store and look for bulbs.
Thanks!
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  #19  
Old 12-09-2014, 06:09 PM
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C-FAH Q C-FAH Q is offline
 
Join Date: Dec 2008
Location: Ontario, Canada
Posts: 464
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I bought my first battery in 2007, changed it 2012 just because I figured it didn't owe me anything. Then I sold it for $40 it never had a charger used on it but once or twice briefly. Second battery working well and never seen a charger of any type.
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  #20  
Old 12-09-2014, 06:15 PM
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Mike S Mike S is offline
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Quote:
Originally Posted by flyingriki View Post
Did you do this to the one I gave you a couple years ago?

No, I did not try the rejuvenation on it-------did not know of it at the time.

As I recall, I just put it on the battery minder for a week or so in the de-sulphide mode. After that I used it while doing bench testing of the panel while I was building it.

As this is the backup/e buss battery, it is not used to start the plane, so all has been fine with it. Finally changed it out last annual, just because------it is now in my motorcycle.

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Mike Starkey
VAF 909

Rv-10, N210LM.

Flying as of 12/4/2010

Phase 1 done, 2/4/2011

Sold after 240+ wonderful hours of flight.

"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."

Last edited by Mike S : 12-09-2014 at 06:19 PM.
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