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check capacitor working?
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<blockquote data-quote="Prowler573" data-source="post: 1040283" data-attributes="member: 561023"><p>Here's how I did this -</p><p></p><p>No cap installed, tested using 'Get Some Crunk In Ya System' by Trillville Feat. Pastor Troy:</p><p></p><p>With the car running (at idle) and with the volume on my HU set at 20 (35 being wide open) I took a reading at the battery and at the terminals on my sub amp. It's summer and I'm in Louisiana so the A/C was going too. Voltage readings at both locations showed approx 13.83vdc. I then adjusted the idle up to about 1800RPM so I wouldn't need to hold the gas pedal down (I didn't have anyone else to help me do this) and took readings again. Both locations showed 14.65vdc with the motor turning over a bit faster.</p><p></p><p>I then returned the idle speed to normal to start the test over. All accessories were then turned off (A/C, stereo, etc) and the car was allowed to run for about 10 minutes to top off the battery.</p><p></p><p>Then the same process as above was used but with the volume set on 32 of 35 (same test track being played) Voltage readings at idle showed about 13.55vdc. Readings above idle showed around 14.56vdc.</p><p></p><p>In your question about did I allow sufficient time for charging...were you meaning time to replenish the battery or time to charge the cap? If the former then see above. If the latter then the answer is N/A. The time to charge this cap is almost immeasurable. As soon as it is connected to power and ground you hear a high-pitched whine (best I can describe it) as it draws current into itself but that process lasts less than half a second.</p><p></p><p>I then repeated the above-described process but with the cap installed.</p><p></p><p>Voltage readings throughout the second run (cap installed) showed a variance of less than 1/10 of a volt.</p><p></p><p>*shrug* This particular cap I have looks pretty cool, IMO, but I'd have been mighty disappointed if I had actually bought it rather than winning it in a $1 raffle. (I was still disappointed, mind you, the cap was 3rd prize...1st prize was a 12" TDX //content.invisioncic.com/y282845/emoticons/furious.gif.fc81ca146dbff91fede3ed290dbc4f4c.gif</p></blockquote><p></p>
[QUOTE="Prowler573, post: 1040283, member: 561023"] Here's how I did this - No cap installed, tested using 'Get Some Crunk In Ya System' by Trillville Feat. Pastor Troy: With the car running (at idle) and with the volume on my HU set at 20 (35 being wide open) I took a reading at the battery and at the terminals on my sub amp. It's summer and I'm in Louisiana so the A/C was going too. Voltage readings at both locations showed approx 13.83vdc. I then adjusted the idle up to about 1800RPM so I wouldn't need to hold the gas pedal down (I didn't have anyone else to help me do this) and took readings again. Both locations showed 14.65vdc with the motor turning over a bit faster. I then returned the idle speed to normal to start the test over. All accessories were then turned off (A/C, stereo, etc) and the car was allowed to run for about 10 minutes to top off the battery. Then the same process as above was used but with the volume set on 32 of 35 (same test track being played) Voltage readings at idle showed about 13.55vdc. Readings above idle showed around 14.56vdc. In your question about did I allow sufficient time for charging...were you meaning time to replenish the battery or time to charge the cap? If the former then see above. If the latter then the answer is N/A. The time to charge this cap is almost immeasurable. As soon as it is connected to power and ground you hear a high-pitched whine (best I can describe it) as it draws current into itself but that process lasts less than half a second. I then repeated the above-described process but with the cap installed. Voltage readings throughout the second run (cap installed) showed a variance of less than 1/10 of a volt. *shrug* This particular cap I have looks pretty cool, IMO, but I'd have been mighty disappointed if I had actually bought it rather than winning it in a $1 raffle. (I was still disappointed, mind you, the cap was 3rd prize...1st prize was a 12" TDX [IMG]//content.invisioncic.com/y282845/emoticons/furious.gif.fc81ca146dbff91fede3ed290dbc4f4c.gif[/IMG] [/QUOTE]
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