If you've read this far and are starting to rethink 150's, hair tricks, and broken windshields, you can still enjoy considerable bass with a single high output alternator in your car or truck. As a general rule, you need about 100 amps of current for every 1000 watts of power generated.

How big of an alternator do I need for 2000 watts?

For example, if you installed a 2,000-watt amp, assuming a nominal voltage of 13.5V, you'd add roughly 150 amps of demand to the electrical system.

How do I know what amp alternator I need?

Look for a diagram under or near your fuse box cover. It will have individual amperage numbers (sometimes along with volts) already set by the manufacturer. Add up those numbers to find what amperage your alternator needs to feed the car's electrical system. Verify this number with the part manufacturer, if necessary.

How big of alternator do you need?

Your alternator should be capable of delivering rated output equal to the maximum acceptance rate of your house battery bank. In other words, the alternator's rating should be equal to 25 percent (lead acid) 30 percent (gel) or 45 percent (AGM) of your total battery capacity.

How many watts can a 80 amp alternator handle?

it depends on what size your alternator is. considering its a small car probably around 80amps. thats good enough for around 500 watts rms.

How to Choose a High-Amp Alternator

Can an alternator be too powerful?

You can never have too much amperage when it comes to alternators; therefore, you never have to worry about choosing an alternator with too high of a rated output. Here's why: Amperage is basically the amount of electrical current your alternator can supply. And it basically operates off of supply and demand.

How big of an alternator do I need for 3000 watts?

3000 watt / 12V is equal to 250A. A 250A alternator is needed to keep up with it. Since your engine would have to work just as hard as any portable 3KW generator to keep up with the amplifier, you would need a large fuel tank.

Do you need a bigger alternator for sound system?

If your sound system demands more power than your stock alternator can supply, then you will benefit by upgrading to a higher output alternator.

Is a 160 amp alternator good?

The 160 amp is known to be used on emergency vehicles that are at a standstill and still running lots of 12v power thru said appliances.

What size battery do I need for a 1000 watt amp?

Amp-Hour Calculations

Taking 1000 Watts from a 48-Volt battery requires the battery to deliver approximately 21 Amps. For a 12-Volt battery: 84 Amps DC x 3 hours = 252 A.H.

What size battery do I need for a 1000 watt inverter?

Battery Size for 1000 Watt Inverter. For a 1000 watt inverter, you'll need at least a 100Ah battery. Anything smaller than this and you will run out of energy very quickly.

How much power does a 1000 watt amplifier use?

If the amplifier uses a 12V supply and puts out 1000WRMS, it requires 83 Amps. There are two other things to consider. If 50% efficiency is assumed, you have 166 Amps. Derate 1/3 of the 1000W to give you 55 Amps.

What battery do I need for 2000 watt amp?

The easiest rule of thumb to follow with electrical upgrades is that for every 2000 watts of RMS power you add, you'll want to add 100aH (amp hours) of AGM battery.

Will a 2000 watt amp drain battery?

Answer provided by

Usually, a 2,000-watt car amp will draw about 159 amps. However, this assumes that your car battery is fully charged and operating at 12.6 volts.

When should I upgrade my alternator?

When should you upgrade your Battery or Alternator? Here are a few tell-tale signs that it is time to upgrade your car's alternator to something that can output enough power to meet the demands of your stereo: If your lights start to dim when music is playing, which will be most noticeable during songs with more bass.

What size capacitor do I need for a 1500 watt amp?

A: The rule of thumb is to put in 1 Farad of capacitance for every 1,000 watts RMS of total system power. But there is no electronic penalty for using larger value caps, and in fact, many see benefits with 2 or 3 Farads per 1,000 watts RMS. The larger the cap, the more charge is available for the amp when it needs it.

What does a high amp alternator do?

High Output Alternators increase the amperage of your system. Relying on a stock electrical system for the massive amperage that car audio amplifiers require, while still supplying your vehicle with the current it needs will result in low voltage and other problems.

Will adding a second battery help my audio system?

Secondary batteries are necessary when running the car stereo for extended periods of time. They are also a necessary addition for systems with such a large power draw, and systems where the electrical needs exceed the output of the alternator.

What gauge wire should I use for a 3000 watt amp?

The entire kit is compatible for 4 gauge installation and can handle up to 3000 watts of power. This wiring kit is the tight bond that glues your entire car audio system together, so invest in quality and choose the Q Power Super Flex 4 Gauge 3000 Watt Amplifier Wiring Kit today.

How many 12V batteries do I need for a 3000 watt inverter?

For a 3000-watt inverter, the number of batteries you need depends on their amperes per hour. For example, the average car battery has a 50Ah rating. If the battery banks you want to purchase are also 50Ah, you will need six of them for a 3000-watt inverter.

Is 15 volts too high for alternator?

So, to answer your question, Yes, 15 volts is too high. Most car alternators, that normally recharge your battery after every start, and provide power while the engine is running, are normally voltage regulated to about 13.8 to 14.0 volts.

What is the highest amp alternator?

Remy International has released the Delco Remy 55SI alternator, rated at 420 amps at 12 volts and up to 275 amps at 24 volts.