2011 parasitic draw..... Maby

roadrnnr

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All of a sudden I have a draw some where on my system. Battery is two years old and checked out as good.

I hooked up an amp meter in series on the neg cable and after everything settles down I have .018 amps on the 10
amp scale.

I turned on the ignition and turned it off like I was parking it and after about 20 minutes it settles back down to .018 amps.

No Draw right? But Battery keeps draining about 2 volts a day.

Also my alternator has been putting out 15 volts when running which I know is high but there is no voltage drop between battery, case and three ground wires on fender well.

Anybody know resistance readings for alternator?

Any Ideas where I could look at this point would be much appreciated
 

TMyers

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Pull your hot post terminal off the battery. Then, put a test light between the post and terminal. If the test light lights up, you have a draw of power. If you find a draw, pull fuses one at a time until the light goes out. This will narrow it down to which circuit.
 

indept

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.018 amps is not enough to drain a good battery. The fact that the charging voltage is at 15v indicates it could be the battery going bad. When you say it's losing 2v / day so after 2 days is it at 8v? Try getting it up to full charge then let it sit for a day disconnected and see if it still drops.
 

Burla

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do a search too, loots of info on this already rf.
 

roadrnnr

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.018 amps is not enough to drain a good battery. The fact that the charging voltage is at 15v indicates it could be the battery going bad. When you say it's losing 2v / day so after 2 days is it at 8v? Try getting it up to full charge then let it sit for a day disconnected and see if it still drops.
I ruled out the battery. Tried a new one and had the one I got that is two years old tested.
I left it disconnected over night and it does not drop
That's what I am going around and around with, 18 MA should not drain it i know.
I have done voltage drops on the ALT and grounds, all good.
Today I tested the alternator for a bad diode, all good there to.
I got an amp clamp coming tomorrow to see if it is something intermittently firing up when sitting.
At this point I am at a loss and was just wondering if someone would suggest something I may have overlooked
 

indept

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That complicates things then because if it's sporadically pulling higher current the " put an ammeter in & pull fuses to find the draw" method won't work. What you could do then is pull a group of fuses, maybe 5or 10 fuses each night & see if it drops the next day which would rule out that group or prove it was one of them which will narrow your search.
 
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