Problems with capacitor charging
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=11408
Printed Date: August 05, 2025 at 2:53 PM
Topic: Problems with capacitor charging
Posted By: Ramius83
Subject: Problems with capacitor charging
Date Posted: March 24, 2003 at 9:17 PM
Ok, I recently purchased an Audiobahn digital capacitor. It, for some reason, did not come with instructions, but it did come with the little light bulb (resistor) to charge it. Now, I grounded the right side of the cap. The left side (the positive terminal), I left open. I connected the battery wire to the light bulb, then connected it to the positive terminal on the cap. I charged it to about 10 volts. Now, when I go to permanently connect the capacitor to the battery wire, it sparks and throws out my 12 dollar Monster audio fuses. Does anyone know why it is doing this? Thanks all.....
Replies:
Posted By: bberman1
Date Posted: March 24, 2003 at 9:21 PM
Let it charge on the resister until it reaches the same voltage as your battery and see what happens
Posted By: Ramius83
Date Posted: March 24, 2003 at 9:36 PM
For some odd reason now, the resistor is only letting the capacitor get to 2.3 volts. Any ideas? Are there any alternatives to charging the capacitor?
Posted By: donkason
Date Posted: March 24, 2003 at 9:50 PM
You could problably go to radio shack and get a new resistor if that is the problem.
Posted By: bberman1
Date Posted: March 24, 2003 at 9:53 PM
Get a new resistor or call Audiobahn they should send you a new one. But if it only charges it to 2.3 volts either you have a bad cap or resistor.
Posted By: Ramius83
Date Posted: March 24, 2003 at 10:10 PM
Ok, sine this resistor may be shot, what ohm resistor do I need to purchase....??? Thanks guys for your quick responses....
Posted By: thepencil
Date Posted: March 24, 2003 at 10:45 PM
You can used a resistor between 30-50 ohms. ------------- Be careful whose advice you buy, but be patient with those who supply it. 
Posted By: Cletis
Date Posted: March 27, 2003 at 12:00 AM
You can try using a basic test light and using it in place of the resistor. Charge until the light goes out. Make sure capacitor voltage is around battery voltage.
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