But unlike a battery it doesnt produce its own power, it simply stores it. Wrong, both batteries and capacitors store energy, neither one produces it. Thats what the alternator does. Without a capacitor your amplifier will be robbed of power by parts like your lights, engine, and air conditioner.

Will a capacitor stop my lights from dimming?

A capacitor will not solve headlight-dimming issues if they are constant and major. For these minor power fluctuations, a capacitor is an ideal way to regulate the flow of power from the battery and alternator to the stereo system. Capacitors are measured in farads, which is a unit of capacitance.

Can subwoofers damage your alternator?

Subwoofers on their own cannot damage your alternator. However, subwoofers combined with their amplifier and the corresponding amplifier can damage your alternator if it draws too much power from your battery. And this can cause the alternator to overheat and potentially damage.

How much does it cost to upgrade alternator?

When your car starts having electrical problems, its a sign you need an alternator replacement. Considering the price of a new alternator as well as labor, you should expect to spend anywhere between $500 and $1,000 to get a new one for your vehicle.

What does upgrading your alternator do?

If your sound system demands more power than your stock alternator can supply, then you will benefit by upgrading to a higher output alternator. A 250 or 300 ampere aftermarket high output alternator should provide enough power for all your cars systems and your high-powered stereo too.

Why capacitors are not used as batteries?

Capacitors dont provide large amount of energy because they have less energy density than batteries. Capacitors are useful to provide short duration power requirements because they can be charged or discharged at a higher rate than the batteries.