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#1
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Capicitor question
I have a cap block that has been unhooked from the power source a few times
lately when my alternator went bad. It sat like that for a few days. Do I need to charge that cap back up again? It didnt seem to be keeping my lights from dimming anymore. |
#2
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In article , "Mr. Bigstuff" sd!
wrote: I have a cap block that has been unhooked from the power source a few times lately when my alternator went bad. It sat like that for a few days. Do I need to charge that cap back up again? It didnt seem to be keeping my lights from dimming anymore. You should charge it before use. Electrolytic capacitors self-discharge to some degree. It's caused by the aluminum oxide dielectric breaking and then healing by electrolytic oxidation. Connecting a dead capacitor directly to a car battery could be more excitement that you're looking for. |
#3
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hrrm its only 10f : )
"Kevin McMurtrie" wrote in message ... In article , "Mr. Bigstuff" sd! wrote: I have a cap block that has been unhooked from the power source a few times lately when my alternator went bad. It sat like that for a few days. Do I need to charge that cap back up again? It didnt seem to be keeping my lights from dimming anymore. You should charge it before use. Electrolytic capacitors self-discharge to some degree. It's caused by the aluminum oxide dielectric breaking and then healing by electrolytic oxidation. Connecting a dead capacitor directly to a car battery could be more excitement that you're looking for. |
#4
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10f? eep.. i would try to discharge it fully, then charge it up again.
Safest way to go.. Just make sure that you dont screw it up.. im still scared of screwing one of those things up "Mr. Bigstuff" sd! wrote in message ... hrrm its only 10f : ) "Kevin McMurtrie" wrote in message ... In article , "Mr. Bigstuff" sd! wrote: I have a cap block that has been unhooked from the power source a few times lately when my alternator went bad. It sat like that for a few days. Do I need to charge that cap back up again? It didnt seem to be keeping my lights from dimming anymore. You should charge it before use. Electrolytic capacitors self-discharge to some degree. It's caused by the aluminum oxide dielectric breaking and then healing by electrolytic oxidation. Connecting a dead capacitor directly to a car battery could be more excitement that you're looking for. |
#5
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10f ! Geeez. Be careful!
"Mr. Bigstuff" sd! wrote in message ... hrrm its only 10f : ) "Kevin McMurtrie" wrote in message ... In article , "Mr. Bigstuff" sd! wrote: I have a cap block that has been unhooked from the power source a few times lately when my alternator went bad. It sat like that for a few days. Do I need to charge that cap back up again? It didnt seem to be keeping my lights from dimming anymore. You should charge it before use. Electrolytic capacitors self-discharge to some degree. It's caused by the aluminum oxide dielectric breaking and then healing by electrolytic oxidation. Connecting a dead capacitor directly to a car battery could be more excitement that you're looking for. |
#6
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"Scott Johnson" wrote in message ... 10f ! Geeez. Be careful! Although I am sure that there is 10f capacitors out there I just can't shake the thought that it may not be 10 but rather 1.0, some manufactures may just make the . a little small. Les |
#7
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"Kirby" wrote in message news:wHCMd.265564$Xk.98205@pd7tw3no... 10f? eep.. i would try to discharge it fully, then charge it up again. Safest way to go.. Just make sure that you dont screw it up.. im still scared of screwing one of those things up What's your point in discharging it fully? Just for storage sake? I can't see why else you'd want to discharge a capacitor. -Bruce |
#8
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Lightning Audio now has a 100 farad cap. Testing showed of what I can
remember it was in fact 118. No mistakes with the decimals. "Les" wrote in message ... "Scott Johnson" wrote in message ... 10f ! Geeez. Be careful! Although I am sure that there is 10f capacitors out there I just can't shake the thought that it may not be 10 but rather 1.0, some manufactures may just make the . a little small. Les |
#9
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This thing is about the size of 2 1500ds stacked on top of eachother. Def
not 1.0f "Kirby" wrote in message news:Ne_Md.274920$6l.182188@pd7tw2no... Lightning Audio now has a 100 farad cap. Testing showed of what I can remember it was in fact 118. No mistakes with the decimals. "Les" wrote in message ... "Scott Johnson" wrote in message ... 10f ! Geeez. Be careful! Although I am sure that there is 10f capacitors out there I just can't shake the thought that it may not be 10 but rather 1.0, some manufactures may just make the . a little small. Les |
#10
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In article , "Les"
wrote: "Scott Johnson" wrote in message ... 10f ! Geeez. Be careful! Although I am sure that there is 10f capacitors out there I just can't shake the thought that it may not be 10 but rather 1.0, some manufactures may just make the . a little small. Les It's a different type of capacitor. Aluminum electrolytic capacitors are two dimensional capacitors rolled up. Carbon aerogel capacitors are three dimensional capacitors. That's where their enormous storage comes from. |
#11
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interesting:
For example, an Aerogel Capacitor the size of a "AA" alkaline battery can deliver up to 35 Amperes of peak current. off a website. This is why one must be careful with big caps. If you have one that can deliver 100-200 amps instant current, you can blow a hole in steel! "Kevin McMurtrie" wrote in message ... In article , "Les" wrote: "Scott Johnson" wrote in message ... 10f ! Geeez. Be careful! Although I am sure that there is 10f capacitors out there I just can't shake the thought that it may not be 10 but rather 1.0, some manufactures may just make the . a little small. Les It's a different type of capacitor. Aluminum electrolytic capacitors are two dimensional capacitors rolled up. Carbon aerogel capacitors are three dimensional capacitors. That's where their enormous storage comes from. |