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Old 05-16-2019, 12:24 PM
alpinelakespilot2000 alpinelakespilot2000 is online now
Join Date: Jan 2005
Posts: 3,633
Default Just because one thing is good, doesn't mean all is well...

Originally Posted by bob888 View Post
After reading all the above and checking accuracy of my voltmeter (within .2 of test instrument), I did what I should have done first. A review of the Odyssey spec sheet showed ideal charging voltage 14.7 and normal range 14.2 to 15 volts. I guess I?m OK... Thanks to all for their input.
I was just going to post that Odyssey's do indeed, according to their literature, like higher voltages than other batteries. However, and this a BIG however, Plane Power regulators are to my understanding set for less than that. If your plane power is actually producing that, then something is wrong. This was what one of the things I saw at the beginning of my Plane Power failure as well.
Steve M.
Ellensburg WA
RV-9 Flying, 0-320, Catto

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Old 05-16-2019, 01:18 PM
Carl Froehlich's Avatar
Carl Froehlich Carl Froehlich is offline
Join Date: Dec 2007
Location: Dogwood Airpark (VA42)
Posts: 2,495

And you forgot to look at your avionic supply voltage specs. 15vdc is too high.

Your alternator voltage regulator is going south.

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Old 05-16-2019, 03:14 PM
jrs14855 jrs14855 is offline
Join Date: Apr 2008
Location: Lake Havasu City AZ
Posts: 2,384
Default Alternator

Originally Posted by Lenny Iszak View Post
Also check the connector at the alternator. There?s an extensive thread about that.

If it ends up to be a failing regulator, here?s the Aircraftspruce part numberr for a replacement:

The spruce pn took me to a list of Hartzell parts that must be over 200 items. No order to the list. I tried several months ago to get info from Hartzell about high voltage. Their "customer service" for alternators is non existent. An avionics shop that I trust told me that 15v will not hurt my Bendix King avionics.
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