need help to power system HELP!!!!!!!!

[cory27881]

i have 2 12" xplods 1,200watt each and a 1,600 watt amp running it all and my battary keeps dieing so what should i do thanks

[KoukiS14]

Is your battery problem even stereo related? If you are running that system with the car off then the battery will die eventually.

Be more specific.

[cory27881]

no even when i have the car on the battary eventually dies i need like a capatols or something

[KoukiS14]

2 Possible Scenarios

1. Your Battery is shot.
2. Your Alternator is shot.

Get your battery and alternator load tested at a local shop. I think Pep Boys or Auto Zone in the US should do this for free.

[Ben]

^^^ Yeah, I'll agree with the above statement.

[turboMiata]

What's the rating on your alternator? 1600W peak draws about 133A. Not that you draw all that current constant but it's alot.

Does your RPM drop and headlights dim when you crank it up? If so, you need a bigger alternator and do yourself a favour and get an Optima yellowtop.

Then again, your alternator or battery could be shot.

[cory27881]

what is a yellow top

[cory27881]

and my battary is dead and my alternator is fine

[soupey]

a cap might help, but ur prolly still better off gettin a new battery

[cory27881]

yea i am going to get a new battary today but i am also gonna get a cap

[cory27881]

any one no wehre i can get a high output alternator for cheap thanks

[Weapon_R]

lol save your money - a capacitor won't do anything.

Check the battery. Check the alternator. One of them is gone. Replace it.

[cory27881]

i just a new battary but even when i got a new one last time the battary died on me

[cory27881]

and y won't a cap do anything

[KoukiS14]

A Cap is not a battery, nor will it prevent your battery from dying. If your battery keeps dying then your alternator is toast. Get that tested.

[Big_C_racing]

Either the alternator is toaster or it isn't big enough. Find out how big the alternator is then find out what wattage that amperage can maintain.

[soupey]

cap won't let his stuff dim out as easily tho, haha, but gettn a new battery is definately ur best bet

[GQNammer]

what the heck is the point of a cap then?

[Zero102]

Okie dokie, that's an easy question.
A large amplifier will put a large intermittant draw on your charging system.
What I mean is, when you sub is pounding, there is power going to it at say... 40Hertz. So, there must be power going into the amp at roughly 40Hertz, now the capacitors inside the amp will buffer that a bit, but it is still a non-constant draw. Alternators are fairly slow to react to a changing draw, and in the long term, a large draw of that natrure is detrimental to the life of your alternator.
So, a capacitor will buffer the power a little. Since there is a much lower resistance path from it to your amp than from your battery/alternator, it will provide most of the power to the amp, and then it will place a more constant draw on the charging system.

I hope my explanation was enough. I know what I am talking about, but I am never really able to answer simple questions =(