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it might be a dumb question but it's really Important cause I don't wanna blow anything up....but can you

You know those battery chargers that you can plug in at a home socket thats what I'm talking about?

2007-07-10 21:13:36 · 5 answers · asked by william h 1 in Cars & Transportation Car Audio

5 answers

Any voltage source can be used to charge the capacitor, as long as it doesn't exceed the capacitor's voltage rating.

However, why would you want to charge the cap before it's installed into the vehicle? When you're installing a capacitor, you want it to be completely discharged; don't charge it until it's wired and mounted in place.

2007-07-11 01:30:20 · answer #1 · answered by KaeZoo 7 · 2 0

Here's one method to do it safely...

It's best to install it as close to the amp as possible. You may need to get addition power and ground wire the same size you have now. Otherwise, cut the ground and power wire leaving enough room to mount it. The overall length of the ground wire should as short as possible (18" or less if possible, not critical).

Remove the fuse at the battery. If you don't have one, you need one that is rated the same as the total fuses that are on the amp. It must be no more than 18" from the battery.

Connect the ground from the chassis to the cap (-) then to the amp (-).

Connect the the power wire (from fuse by the battery) to the cap (+) then to the amp (+).

To charge the cap, get a 12v light bulb with leads. Temporarily connect the power wire from the battery to one side of the bulb (at the fuse) and connect the other side of the bulb to the wire going to the cap. The bulb will light and over a period of time (10-20 seconds) it will get dimmer. When the bulb goes out, the cap is charged. Basically, your going to put the light bulb where the fuse was.

Now you can re-install the fuse.

_______________________

IMPORTANT: Make/print a sign/note that states:

"WARNING: This vehicle employs a large electrolytic capacitor for the electrical/audio system. The capacitor holds a charge EVEN when disconnected. When changing the battery, remove this fuse. Take caution and charge the capacitor prior to replacing this fuse. SEVERE INJURY OR DAMAGE MAY RESULT IN FAILURE TO COMPLY!"

Have a big red arrow pointing to the fuse and one of those yellow triangles with the exclamation point in the center. Laminate this sign and place it near the fuse by the battery.

Something like this:

http://i81.photobucket.com/albums/j230/sparky3489/CapWarning.jpg

2007-07-11 06:01:25 · answer #2 · answered by Anonymous · 1 0

Most capacitors will bleed off the charge within a minute when disconnected. You can charge it, but by the time you get it connected, it will be dead again.

2007-07-11 02:59:06 · answer #3 · answered by cplkittle 6 · 1 0

ok a capacitor is not a battery so i dont think you can charge it a capacitor just stores the energy so when your amp needs that energy the capacitor releases it to give better performance to your amp and olso u dont drain your battery so i dont think you can charge it

2007-07-14 21:06:06 · answer #4 · answered by lowrider_ortiz 3 · 0 1

no actually i dont know what your talking about my battery chargers have a built in cell that charges your car. unless you talking about a phone charger and i wouldnt see how because you house is about 110 volts i think and you car is 12.

2007-07-10 21:30:58 · answer #5 · answered by sid23man 3 · 0 0

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