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Adjusting a digital capacitor

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=25321
Printed Date: May 06, 2024 at 1:25 AM


Topic: Adjusting a digital capacitor

Posted By: s_rhabb
Subject: Adjusting a digital capacitor
Date Posted: January 26, 2004 at 7:13 PM

How can I adjust my digital capacitor so that it give the proper voltage reading?



Replies:

Posted By: Teken
Date Posted: January 26, 2004 at 8:07 PM
What do you mean the proper reading? Normally the LED on the capacitor will display the vehicles battery terminal voltage.

If it has not been properly charged, prior to installation, then there will be a potential difference, but it wont be alot

Regards

EVIL Teken . . .




Posted By: forbidden
Date Posted: January 26, 2004 at 8:07 PM
You don't, it gives you the reading that it sees.

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Top Secret, I can tell you but then my wife will kill me.




Posted By: s_rhabb
Date Posted: January 26, 2004 at 8:09 PM
15+ volts doesnt  really look normal to me.  Espeacially whit a stock alternator.




Posted By: forbidden
Date Posted: January 26, 2004 at 8:10 PM

Are you reading the voltage under load or idle?



-------------
Top Secret, I can tell you but then my wife will kill me.




Posted By: Clean Install
Date Posted: January 26, 2004 at 8:14 PM

I dont think thats too normal 15+volts, have you checked to see what your alternator is putting out ?



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If we learn from each success and
each failure, then we can improve ourselves




Posted By: s_rhabb
Date Posted: January 26, 2004 at 8:16 PM
Both.  I know both load and idle should be the same but I'm also getting fluctuations in the readings which leads me to believe that my voltage regulator has had it, plus my alternator has taken a betting before I got my caps.




Posted By: s_rhabb
Date Posted: January 26, 2004 at 8:19 PM
its stock it puts out 105 amps. I still gotta buy a multi meter to see what my real voltage is.




Posted By: Clean Install
Date Posted: January 26, 2004 at 8:24 PM
Your reading on the cap will fluctuate..

-------------
If we learn from each success and
each failure, then we can improve ourselves




Posted By: Teken
Date Posted: January 26, 2004 at 8:26 PM
I cannot speak as to what brand of LED cap you may have. But know that some cheaper units do not display the correct value, and round up the true value.

14.8 is generally displayed on a graduated display as 15.0 volts.

I would def varify the charging system, if you do suspect a regulator fault.

Regards

EVIL Teken




Posted By: s_rhabb
Date Posted: January 26, 2004 at 8:36 PM
I'm pretty sure my alternator is on it way out anyway because I got 4.5 F or protection and I still get light dimming depending on what I play.  A upgrade in alternator was in the plan anyway.  But back to the origional question, on digital capacitors isnt there a Tensiometer or something to adjust the resitance so I can match the cap to whatever my actual voltage reads?  I thougth I saw something like that on my caps but I didnt want to mess with it since I wasnt sure if thats what it was.




Posted By: customsuburb
Date Posted: January 28, 2004 at 5:55 PM
If your alternator is only 105 amps and you have a pretty big system (over 500 watts RMS) then your headlights will still dim a little or alot depending how many watts your amp puts out RMS. A bigger alternator should solve your headlight dimming problem.




Posted By: s_rhabb
Date Posted: January 28, 2004 at 6:51 PM
yea, I'm working on getting a new alternator soon anyway.





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