Fli capacitor?

[luwegi]

Heya guys, could someone please tell me exactly what a fli capacitor does?I understand that it does something to stop surges of power or somethig? Many thanks

luwegi

[HDi fun]

Capacitors are devices that store electrical charge. Large ones such as you're discussing here, with a capacity of the order of 1 farad or more are often used in ICE installations as a buffer when power amplifiers demand more current than the car's electrical system can supply.


Typically this occurs transiently (ie. short and very loud bits).

Capacitors should be positioned as close to the amplifier as possible and connected with heavy duty cable.

A car battery is also an electrolytic capacitor and works on exactly the same principle. THere's no reason not to mount a battery close to your amps instead but with a battery the electrolyte is liquid so spills can be a major problem.

[luwegi]

Thank you very much excellent response, and exactly what I needed to know! Cheers bud

Luwegi

p.s. What do the numbers mean on top of it?

[herb]

Originally Posted by luwegi

Thank you very much excellent response, and exactly what I needed to know! Cheers bud

Luwegi

p.s. What do the numbers mean on top of it?

if you mean the digital display?? that will be the voltage that is currently stored in the capacitor

[luwegi]

Originally Posted by herb

if you mean the digital display?? that will be the voltage that is currently stored in the capacitor

ok, thank you, and what is the maximum it can be? for the capacitor in question?

Many Thanks

Luwegi

[turbonutter69]

The highest readout will be the voltage of your cars battery.
The Lcd display tells you how much voltage you have left. If it's reading really low then you need a bigger cap. If it's staying high all the time then you either haven't installed correctly or your system isn't using that much juice.

[wolfmankurd]

If it's reading low constantly then you need a better alt battery.
The caps only there to provide during high power spikes.

[HDi fun]

It's still worth having a high quality supply even if you're not into massively over boosted bass. Current delivery is the critical thing.