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Low Voltage

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Troy Maynor

Joined: 10 Jan 2006
Posts: 162

Posted: Sun Nov 06, 2011 12:26 pm Post subject: Low Voltage

Hi All,

Recently I had been getting low voltage readings in my Europa. 

It has the 912S with a total of 125 hours on it. 

I have an Odessey 680, 17ah battery, 2 years old.

It is basically wired as per the Europa supplied diagram. 

I keep a Battery Tender Plus hooked up all the time.

I do not get a alternator light come on, except when I shut down.

The voltage reading on climb out yesterday on departure from home read 13.7 at one point. 

After a 1.5 hour flight to Kentucky the voltage was probably around 12v.

On start up to taxi from the fuel pit to the restaurant it hit on the first blade and started quickly 1.5 hours later when we left for home. 

Voltage slowly dropped on the way home when finally the EIS showed 10.9 volts on landing. I forgot to try to restart at that time. 

I had turned off none essential stuff along the way. Pulled the breakers for the Art.Horizon, Turn Coord., turned off XPDR, then finally the radio except when we got close to home and the nearby class c. 

I am thinking its only the battery What do you all think?

I have looked at all the posts I could search on here, and Aeroelectric,(very cumbersome search engine). None conclusive. I am wondering if it could be the regulator. The manuals aren't any help either.

Troy Maynor

Europa Monowheel Classic

UK120

125 hours to date

- The Matronics Europa-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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Rocketman

Joined: 07 Sep 2010
Posts: 87
Location: USA, Earth

Posted: Sun Nov 06, 2011 1:42 pm Post subject: Low Voltage

Troy,



Have you checked the inline fuse?



Jeff - Baby Blue



On 11/6/2011 2:26 PM, Troy Maynor wrote:

 	  Quote: 	
		   



 Hi All,

 Recently I had been getting low voltage readings in my Europa.

 It has the 912S with a total of 125 hours on it.

 I have an Odessey 680, 17ah battery, 2 years old.

 It is basically wired as per the Europa supplied diagram.

 I keep a Battery Tender Plus hooked up all the time.

 I do not get a alternator light come on, except when I shut down.

 The voltage reading on climb out yesterday on departure from home read 13.7 at one point.

 After a 1.5 hour flight to Kentucky the voltage was probably around 12v.

 On start up to taxi from the fuel pit to the restaurant it hit on the first blade and started quickly 1.5 hours later when we left for home.

 Voltage slowly dropped on the way home when finally the EIS showed 10.9 volts on landing. I forgot to try to restart at that time.

 I had turned off none essential stuff along the way. Pulled the breakers for the Art.Horizon, Turn Coord., turned off XPDR, then finally the radio except when we got close to home and the nearby class c.

 I am thinking its only the battery What do you all think?

 I have looked at all the posts I could search on here, and Aeroelectric,(very cumbersome search engine). None conclusive. I am wondering if it could be the regulator. The manuals aren't any help either.

 Troy Maynor

 Europa Monowheel Classic

 UK120

 125 hours to date





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p=357088#357088

- The Matronics Europa-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Europa-List

jeff(at)rmmm.net
Guest

Posted: Sun Nov 06, 2011 6:59 pm Post subject: Low Voltage

Troy,

There are are many things but I had the same problem flying back from FL. last week. What I found was a bad ground or corroded ground going back thru the firewall. Fixed it today and she's charging again. It was as you described... no alternator light just a slow drop in voltage. Check your grounds everywhere. BTW: I have an extra regulator if you want to try it.



Regards,

Jeff R. N128LJ Gold Rush



On Nov 6, 2011, at 2:26 PM, Troy Maynor wrote:



 	  Quote: 	
		   

 

 Hi All,

 Recently I had been getting low voltage readings in my Europa. 

 It has the 912S with a total of 125 hours on it. 

 I have an Odessey 680, 17ah battery, 2 years old.

 It is basically wired as per the Europa supplied diagram. 

 I keep a Battery Tender Plus hooked up all the time.

 I do not get a alternator light come on, except when I shut down.

 The voltage reading on climb out yesterday on departure from home read 13.7 at one point. 

 After a 1.5 hour flight to Kentucky the voltage was probably around 12v.

 On start up to taxi from the fuel pit to the restaurant it hit on the first blade and started quickly 1.5 hours later when we left for home. 

 Voltage slowly dropped on the way home when finally the EIS showed 10.9 volts on landing. I forgot to try to restart at that time. 

 I had turned off none essential stuff along the way. Pulled the breakers for the Art.Horizon, Turn Coord., turned off XPDR, then finally the radio except when we got close to home and the nearby class c. 

 I am thinking its only the battery What do you all think?

 I have looked at all the posts I could search on here, and Aeroelectric,(very cumbersome search engine). None conclusive. I am wondering if it could be the regulator. The manuals aren't any help either.

 Troy Maynor

 Europa Monowheel Classic

 UK120

 125 hours to date

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=357088#357088

- The Matronics Europa-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Europa-List

kheindl(at)msn.com
Guest

Posted: Mon Nov 07, 2011 4:28 am Post subject: Low Voltage

Hi Troy,



It happened twice to me : once when there was a missing jumper to the regulator, and once when I had a broken wire to the regulator. I now have two spare regulators, as the original never failed.

I have the same battery as you and others and it should be fine also.

Karl





 	  Quote: 	
		   Subject: Low Voltage

 From: wingnut54(at)charter.net

 Date: Sun, 6 Nov 2011 12:26:08 -0800

 To: europa-list(at)matronics.com

 

 --> Europa-List message posted by: "Troy Maynor" <wingnut54(at)charter.net>

 

 Hi All,

 Recently I had been getting low voltage readings in my Europa. 

 It has the 912S with a total of 125 hours on it. 

 I have an Odessey 680, 17ah battery, 2 years old.

 It is basically wired as per the Europa supplied diagram. 

 I keep a Battery Tender Plus hooked up all the time.

 I do not get a alternator light come on, except when I shut down.

 The voltage reading on climb out yesterday on departure from home read 13.7 at one point. 

 After a 1.5 hour flight to Kentucky the voltage was probably around 12v.

 On start up to taxi from the fuel pit to the restaurant it hit on the first blade and started quickly 1.5 hours later when we left for home. 

 Voltage slowly dropped on the way home when finally the EIS showed 10.9 volts on landing. I forgot to try to restart at that time. 

 I had turned off none essential stuff along the way. Pulled the breakers for the Art.Horizon, Turn Coord., turned off XPDR, then finally the radio except when we got close to home and the nearby class c. 

 I am thinking its only the battery What do you all think?

 I have looked at all the posts I could search on here, and Aeroelectric,(very cumbersome search engine). None conclusive. I am wondering if it could be the regulator. The manuals aren't any help either.

 Troy Maynor

 Europa Monowheel Classic

 UK120

 125 hours to date

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=357088#357088

 

 

 

 

 

&gt========================

- The Matronics Europa-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Europa-List

Troy Maynor

Joined: 10 Jan 2006
Posts: 162

Posted: Tue Nov 15, 2011 12:50 pm Post subject: Re: Low Voltage

Hey Folks,

Just wanted to say I fixed my low voltage problem. It turned out to be the regulator. I checked all connections having anything to do with the charging system,(most anyway). Then having a spare in my cross country box, I put it in and ran it and all is well again. Like I said, I have about 125 hours on it. I MAY have shortened it's life one day during shutdown when I turned off the master before the engine, not sure. The battery was actually 2 and half years old. The Odessey literature states only a two year warranty on the battery. Thanks for all your help. This once more proves the great worth of this forum. Need to make my contribution to Matt.

Troy Maynor

- The Matronics Europa-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Europa-List

rampil

Joined: 04 May 2007
Posts: 870

Posted: Fri Nov 18, 2011 2:37 pm Post subject: Re: Low Voltage

Hi Troy,



I did not see anything in your description to suggest battery malfunction.

It did sound exactly like a failure of the charging system. Sounds like your

2.5 year old battery performed admirably in keeping you going by itself

when the regulator failed.

The approriate diagnostic test is to check the battery voltage (at the 

battery) while the engine is running. If it is not > 13.5V, the charging system is belly up.



Cheers,



Ira

- The Matronics Europa-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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_________________
Ira N224XS

Troy Maynor

Joined: 10 Jan 2006
Posts: 162

Posted: Fri Nov 18, 2011 3:05 pm Post subject: Re: Low Voltage

Ira,

Yes the battery performed as it should. The only charging was in the hangar with the Battery Tender Plus. You are correct about reading battery voltage. My monitor was checking it as I flew along but I did not check it at the battery. 

Troy

- The Matronics Europa-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Europa-List

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