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  #21  
Old Yesterday, 12:55 AM
Erimo's Avatar
Erimo Erimo is offline
 
Join Date: Jul 2015
Location: Marcoussis, France
Posts: 140
Default

Quote:
Originally Posted by lr172 View Post
Presuming that you flew it 3 days ago and left the plane without charging it on the ground, then came back and measured batt voltage at 13V.
Larry
Yes Larry, it was.
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RV 14A - #140252 - Flying
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  #22  
Old Yesterday, 04:10 AM
Richard Connell Richard Connell is offline
 
Join Date: Aug 2006
Location: Sydney Australia
Posts: 261
Default Two similar issues Iíve experienced.

As others have mentioned check all your connections.
I had nut on the fat wire on the downstream side of the starter contactor come loose. It arced and welded itself. So it still worked but super patchy.

The other one which I have seen a few people do (myself included) is inadvertently wire the voltage sense on an external alternator regulator to the battery bus.
That regulator will draw a tiny current (about 20mA) with everything shut off.
Obv not a problem if you fly regularly but if you leave it a week or two..
Easy to test. See if thereís any parasitic drain on the battery with the master off.

Cheers.
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