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Low voltage readings w/2 new Opti Yellow

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=17445
Printed Date: July 18, 2025 at 8:40 PM


Topic: Low voltage readings w/2 new Opti Yellow

Posted By: purplexcel
Subject: Low voltage readings w/2 new Opti Yellow
Date Posted: August 10, 2003 at 10:32 PM

Just looking for some opinions. I just installed a Lightning digital cap into my system. I have 2 Optima yellow top batteries,but I'm still only getting a reading of a maximum 12.0 volts. I bought the cap off of ebay and it has a dent in it. Can this dent be causing the problem that I'm having? Do I need another cap? The batts are brand new and have been checked out to be OK.

Any insight will be appreciated.



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I am a former IASCA competitor.I competed from 90'-94'in FLA. I once took 4th place honors at the Spring Break Nationals in 94'w/my Purple 87'Hyundai Excel. It was one of the top cars 51-100 am.



Replies:

Posted By: auex
Date Posted: August 10, 2003 at 10:52 PM
Check all of your other connections. Make sure you have a good clean ground, make sure your fuse isn't corroded, make sure there isn't any corrosion on your wiring. You should also take a meter to the cap and see what voltage you are getting, the cap voltage gauge could be messed up.

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Certified Security Specialist
Always check info with a digital multimeter.
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