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wright.dennis(at)icloud.c
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 Posted: Tue Jul 05, 2016 7:26 pm Post subject: Dead battery |
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Trying to figure out if I have an issue with my electrical system in my sonex or just bad luck. Have had multiple battery failures. Here's the situation. Battery is an odyssey pc625. , 12 volt. Engine is an Aerovee 2180. First flight was in December 2015. Battery at that time was about 2.5 years old. During the time before first flight had to charge batter several times due to minimal use. After about 5 hrs of flying started experiencing a dead battery. Would charge, fly, and next day battery would be dead again. Figured it was due to age and fact that battery had sat uncharged for prolonged periods. Replaced battery. After about 15 hrs flying time (about 3 months) on new battery, went dead. Tried to charge but would not hold a charge. Had battery tested and showed that it had a bad cell. Replaced battery. After about 25 hrs (about 3 months), another dead battery and will not hold a charge Each time everything is working perfect one day and dead the next. Not blowing any fuses, no smoking wires, system voltage is showing 13.5 volts when I'm flying. Have not checked to see if there is a load on the battery when the battery solenoid is open but do not have anything connected on the battery side of the solenoid so unless the solenoid is bad, shouldn't have any load when off. Would appreciate any thoughts on what the problem might be or where to start to figure it out.
From: Dennis Wright
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ceengland7(at)gmail.com
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| Posted: Tue Jul 05, 2016 7:35 pm Post subject: Dead battery |
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On 7/5/2016 10:26 PM, Dennis Wright wrote:
| Quote: |
Trying to figure out if I have an issue with my electrical system in my sonex or just bad luck. Have had multiple battery failures. Here's the situation. Battery is an odyssey pc625. , 12 volt. Engine is an Aerovee 2180. First flight was in December 2015. Battery at that time was about 2.5 years old. During the time before first flight had to charge batter several times due to minimal use. After about 5 hrs of flying started experiencing a dead battery. Would charge, fly, and next day battery would be dead again. Figured it was due to age and fact that battery had sat uncharged for prolonged periods. Replaced battery. After about 15 hrs flying time (about 3 months) on new battery, went dead. Tried to charge but would not hold a charge. Had battery tested and showed that it had a bad cell. Replaced battery. After about 25 hrs (about 3 months), another dead battery and will not hold a charge Each time everything is working perfect one day and dead the next. Not blo!
wing any fuses, no smoking wires, system voltage is showing 13.5 volts when I'm flying. Have not checked to see if there is a load on the battery when the battery solenoid is open but do not have anything connected on the battery side of the solenoid so unless the solenoid is bad, shouldn't have any load when off. Would appreciate any thoughts on what the problem might be or where to start to figure it out.
From: Dennis Wright
13.5v isn't enough to charge the battery.
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avidsid(at)yahoo.com
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| Posted: Wed Jul 06, 2016 4:53 am Post subject: Dead battery |
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guessing you have a low draw short somewhere........try disconnecting a battery lead (positive) over night and see if that saves the battery charge, if so, then you need to work your way out the systems to find the shorting wire/part. IMO
On Tuesday, July 5, 2016 11:44 PM, Charlie England <ceengland7(at)gmail.com> wrote:
--> Homebuilt-List message posted by: Charlie England <ceengland7(at)gmail.com (ceengland7(at)gmail.com)>
On 7/5/2016 10:26 PM, Dennis Wright wrote:
| Quote: | --> Homebuilt-List message posted by: Dennis Wright <wright.dennis(at)icloud.com (wright.dennis(at)icloud.com)>
Trying to figure out if I have an issue with my electrical system in my sonex or just bad luck. Have had multiple battery failures. Here's the situation. Battery is an odyssey pc625. , 12 volt. Engine is an Aerovee 2180. First flight was in December 2015. Battery at that time was about 2.5 years old. During the time before first flight had to charge batter several times due to minimal use. After about 5 hrs of flying started experiencing a dead battery. Would charge, fly, and next day battery would be dead again. Figured it was due to age and fact that battery had sat uncharged for prolonged periods. Replaced battery. After about 15 hrs flying time (about 3 months) on new battery, went dead. Tried to charge but would not hold a charge. Had battery tested and showed that it had a bad cell. Replaced battery. After about 25 hrs (about 3 months), another dead battery and will not hold a charge Each time everything is working perfect one day and dead the next. Not b!
lo!
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| Quote: | wing any fuses, no smoking wires, system voltage is showing 13.5 volts when I'm flying. Have not checked to see if there is a load on the battery when the battery solenoid is open but do not have anything connected on the battery side of the solenoid so unless the solenoid is bad, shouldn't have any load when off. Would appreciate any thoughts on what the problem might be or where to start to figure it out.
From: Dennis Wright
13.5v isn't ecs.com/Navigator?Homebuilt-List" target="_blank">http://www.matronics.comp; &nhttp://========================
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fherr(at)cfl.rr.com
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| Posted: Wed Jul 06, 2016 7:24 am Post subject: Dead battery |
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I think you need to look at the alternator. 13.5 volts is too little to charge a 13.2 volt system (6 * 2.2 volts per cell). Recommend 14+ volts charging.
Francis
On Jul 5, 2016, at 11:26 PM, Dennis Wright <wright.dennis(at)icloud.com> wrote:
Trying to figure out if I have an issue with my electrical system in my sonex or just bad luck. Have had multiple battery failures. Here's the situation. Battery is an odyssey pc625. , 12 volt. Engine is an Aerovee 2180. First flight was in December 2015. Battery at that time was about 2.5 years old. During the time before first flight had to charge batter several times due to minimal use. After about 5 hrs of flying started experiencing a dead battery. Would charge, fly, and next day battery would be dead again. Figured it was due to age and fact that battery had sat uncharged for prolonged periods. Replaced battery. After about 15 hrs flying time (about 3 months) on new battery, went dead. Tried to charge but would not hold a charge. Had battery tested and showed that it had a bad cell. Replaced battery. After about 25 hrs (about 3 months), another dead battery and will not hold a charge Each time everything is working perfect one day and dead the next. Not blo!
wing any fuses, no smoking wires, system voltage is showing 13.5 volts when I'm flying. Have not checked to see if there is a load on the battery when the battery solenoid is open but do not have anything connected on the battery side of the solenoid so unless the solenoid is bad, shouldn't have any load when off. Would appreciate any thoughts on what the problem might be or where to start to figure it out.
From: Dennis Wright
| | - The Matronics Homebuilt-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?Homebuilt-List |
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