# What Size Alternator Do I Need For 5000 Watts?

## What is the most powerful alternator?

— Remy International Inc., manufacturer and distributor of Delco Remy brand heavy-duty starters and alternators, has released its most powerful and efficient alternator yet to the aftermarket.

The Delco Remy 55SI has a durable brushless design and is rated at 420 amps at 12 volts and up to 275 amps at 24 volts..

## How many amps is 2000 watts alternator?

The easiest way to ballpark that figure is to use the formula amps x volts = 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.

## Is a higher amp alternator better?

Amperage is basically the amount of electrical current your alternator can supply. … That is, your alternator will only supply the amount of amperage a particular component demands—and no more. So high-output alternators will not harm your components or charging system, no matter how high you go with the amps.

## Will my amp kill my battery?

if you have the wiring correctly, your amp wont drain the battery. … The amps do not turn on until the car is in at least accessory mode. I did not think it should have caused a problem but he said it can easily kill my battery prematurely because it puts a lot of strain on the battery and alternator while it’s running.

## How many batteries do I need for a 2000 watt inverter?

Now come to batteries, a 2000 watts inverter usually needs 24 volts to generate power. 2 batteries of 12 volts 200AH (you can use other capacity too) in series connection needed and out of them you would be able to use 100 AH x 24 volts that is 2.4kWh.

## How many watts can a 120 amp alternator handle?

1200 wattsThe other sorta relative rule of thumb is that 10 amps can translate to somewhere in the neighborhood of 100 watts… so a 120 amp alternator could do 1200 watts.

## Can a car alternator power a house?

Yes, of coures. Alternators can be used to generate electricity, but the alternators are noisy. If there is a short-term power failure, or the family just needs lighting, you can use general lighting, such as flashlight.

## How many amps is a car alternator?

100 ampsMost factory alternators are rated at 65 to 100 amps and are capable of handling a vehicle’s basic accessories—headlights, gauges, fuel pumps, transmission, A/C, etc.

## What size capacitor do I need for a 2000 watt amp?

Sizing Caps The general rule is to add 1 Farad of capacitance for every 1000 watts RMS of system power. Note that it does not hurt to use more capacitance than this rule and many systems use 2 or 3 Farads per 1000 watts RMS.

## Who makes the best high output alternator?

Best High Output Alternator#1.Powermaster 48237 High Output Alternator.#2.ACDelco 335-1086 High Output Alternator.#3.LActrical High Output Alternator.#4.Eagle High High Output Alternator.#5.Parts Player High Output Alternator.

## At what RPM does a alternator charge?

Alternator may not generate sufficient charging voltage until alternator speed is greater than about 2000 RPM. Typically, alternators have their full output rated at 6000 RPM but can continue to spin up to 12,000 RPM or more without any additional increase in output.

## How do I know the amperage of my alternator?

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.

## Can a sound system ruin an alternator?

Yes! Transient voltage spikes could easily damage the alternator or the rectifiers.

## What should alternator voltage be at idle?

13-14 voltsA car alternator needs to be putting out at least 13-14 volts (ideally between 13.8 and 14.2 volts) to effectively charge a 12 volt car battery.

## What happens if you put the wrong alternator in your car?

It is used to recharge the battery after starting the engine and to power the vehicles electrical devices while the vehicle is in operation. Q) What happens if the alternator is bad? A) A bad alternator will result in a discharged (dead) battery and cause a vehicle to not start or run.

## How many 12v batteries are needed to power a house?

Number of Batteries A battery bank designed to power an average American household for three days would need to supply 90 kilowatt-hours of energy. The battery from the previous example can supply 2.4 kilowatt-hours, so this system would need 38 batteries.

## How many amps is a dr44g alternator?

145 ampI believe both should be 145 amp units and I DR44G is the newer part number.

## What size alternator do I need for 3000 watts?

3000 watts / 12V = 250A. You’d need a 250A alternator to keep up with it. You’d also need a much fuel tank, since your engine would have to work just as hard as any portable 3KW generator to keep up with the amp.

## What size alternator do I need?

As a rule of thumb, 12-volt alternators use one horsepower for every 25 amps of output, or to put it another way, their ratio of output to horsepower load is 25:1. So, when selecting a new alternator, you need to size it for the limits of the capacity of its drive belt.

## How many watts can my alternator handle?

at a charging voltage of around 14 Volts that yields in 560 to 770 Watts. In modern cars alternators have outputs between 70 and 180 Amps! especially when catalytic converter systems with heating elements etc are used. Sometimes alternators are water cooled as well (BMW 150 Amps).

## How many batteries do I need for 5000 watt amp?

The number of batteries will depend on the DC input requirement of the inverter. Usually, a 5kW inverter will have a 24v DC input requirement. So you will need two 12v batteries. Some models use 48V DC, in which case you will need four 12V batteries.