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Car Audio Discussion
General Car Audio
Capacitors, their NOT what some people claim..
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<blockquote data-quote="keep_hope_alive" data-source="post: 8283966" data-attributes="member: 576029"><p>i think you're reading the marketing information. it's still just a capacitor, nothing in it is a battery. a battery would require an AGM or Gel style battery internal, which they don't have. the marketing info tries to explain the concept in simpler terms but when that happens accuracy is lost. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif the advantage is using carbon sheets instead of foil. all caps have an electrolytic fluid inside.</p><p></p><p></p><p>no, not needed for a 14.4V system. if you operate the cap bank at it's rating then yes, the regulating circuits are recommended. i use a 75W 5 ohm resistor bank to regulate charge current. it's just three 15 ohm 25W ceramic resistors in parallel.</p><p></p><p>The only danger with these cap banks is the in-rush when charging from an uncharged state. ever notice a small spark when you hook up the battery? notice how the spark gets larger when caps or big amps are involved? the ultracap banks can pull hundreds of amps in an instant. this means you need to regulate charge current. also, you want a quick disconnect on them so if you disconnect the battery you can also disconnect the cap bank. a cap bank alone will start and run the car. if you were to reconnect the battery to a discharged cap bank, you will likely weld the terminal to the post. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif for that reason, i use a MAXI fuse holder next to the cap bank. the holder gives me a place to insert the charging resistors and also a place for a 100A MAXI fuse that doubles as a quick disconnect.</p><p></p><p>wire is resistance, so keeping the cap bank close to the load will maximize it's effectiveness. this also helps with dynamics because the cap bank reacts quicker than a battery or alternator can.</p></blockquote><p></p>
[QUOTE="keep_hope_alive, post: 8283966, member: 576029"] i think you're reading the marketing information. it's still just a capacitor, nothing in it is a battery. a battery would require an AGM or Gel style battery internal, which they don't have. the marketing info tries to explain the concept in simpler terms but when that happens accuracy is lost. [IMG]//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/IMG] the advantage is using carbon sheets instead of foil. all caps have an electrolytic fluid inside. no, not needed for a 14.4V system. if you operate the cap bank at it's rating then yes, the regulating circuits are recommended. i use a 75W 5 ohm resistor bank to regulate charge current. it's just three 15 ohm 25W ceramic resistors in parallel. The only danger with these cap banks is the in-rush when charging from an uncharged state. ever notice a small spark when you hook up the battery? notice how the spark gets larger when caps or big amps are involved? the ultracap banks can pull hundreds of amps in an instant. this means you need to regulate charge current. also, you want a quick disconnect on them so if you disconnect the battery you can also disconnect the cap bank. a cap bank alone will start and run the car. if you were to reconnect the battery to a discharged cap bank, you will likely weld the terminal to the post. [IMG]//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/IMG] for that reason, i use a MAXI fuse holder next to the cap bank. the holder gives me a place to insert the charging resistors and also a place for a 100A MAXI fuse that doubles as a quick disconnect. wire is resistance, so keeping the cap bank close to the load will maximize it's effectiveness. this also helps with dynamics because the cap bank reacts quicker than a battery or alternator can. [/QUOTE]
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