Depending on the voltage, the 4 AWG copper wire can carry anywhere from **816 watts (12V circuit) to 16320 watts (240V circuit)**. Under the same conditions, the ampacity of the 4 AWG aluminum wire is 65A. Accounting for NEC 80% rule, this means that a 4 AWG aluminum wire can handle up to 52 amps of current.

## How many amps can 4 gauge wire handle?

How many amps can a 4 gauge wire handle? It has a rated ampacity of **85 amps at 75°C**. This means that, for average use, the 4 gauge wire can handle up to 85 amps safely.

## What gauge wire is best for car audio?

When you replace or run new speaker wiring, we recommend using: **18-, 16-, or 14-gauge wires for speakers**. 16-, 14-, or 12-gauge wires for subwoofers.

## Can 4 gauge wire handle 3000 watts?

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 watts can 4 gauge wire carry? – Related Questions**

## Can 4 AWG handle 100 amps?

**#4 AWG can handle 85 amps**. #3 AWG can handle 100 amps. #2 AWG can handle 115 amps. #1 AWG can handle 130 amps.

## Can 4 gauge wire handle 60 amps?

**4 AWG can handle 85 amps**; that’s more than enough ampacity to adequately wire a 60 amp breaker, even accounting for the 80% breaker rule.

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

You’ll need at least **14 gauge wire** which is rated for 15A.

## What gauge wire should I use for a 3000 watt inverter?

The best option for a 3000-watt inverter cable is a **1/0 AWG** (American Wire Gauge) battery cable. These cables can easily manage 300 amps for every eight feet of cable.

## Can 4 gauge wire handle 2000 watts?

Up to 500 watts RMS = 8 gauge. 500 – 1000 watts RMS = 4 gauge. 1000 – 1500 watts RMS = 2 gauge. **1500 -2000 wats RMS = 0 gauge**.

## How many amps do I need for a 3000 watt system?

For example, 3000 Watt equals to: **25 Amps**, if you use 120 V.

## How big of an alternator do I need for 5000 watts?

Ultimately you need a **5000 watt** alternator for a 5000 watt load, but if you consume 5000 watts inside your car it will be effectively an oven and you will die soon. You will also need special signalling to your engine ECU to tell it that the AC is on so that it doesn’t stall.

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

To obtain 3000 Watts AC at 120 Volts from an inverter, you must replace your **100 AMP** alternator with an expensive 250 AMP alternator and install MULTIPLE heavy duty batteries. In addition, 50 more amps are required to operate your vehicles accessories, lights, flashers etc.

## How many batteries do I need for an 8000 watt amp?

12 volt 35 amp batteries contain 12*35=420 watts so 8000 divided by 420 is **19.05 batteries**.

## What battery is best for car audio?

The best car audio battery on the market is the **XS high-performance battery**, thanks to its incredible power. This power cell has 1,000 cold-cranking amps and a max output of 3,300 amps. It also requires no maintenance, is still proof, and is vibration resistant.

## Do bigger Ah batteries give more power?

So in addition to having double the cells, the 5.0Ah battery also has a higher energy density in each one. In general, higher amp hours mean more runtime and **higher voltage means more power**.

## Do I need a capacitor for my amp?

Capacitors offer some small amount of protection for amplifiers from potentially damaging under-voltage surges over time if you play loud music regularly. But **most of the reason for adding capacitors is to keep your car voltage stable**.

## Is it better to have a capacitor or battery?

**A battery can store thousands of times more energy than a capacitor having the same volume**. Batteries also can supply that energy in a steady, dependable stream. But sometimes they can’t provide energy as quickly as it is needed.

## Will a capacitor help my alternator?

**If you have a lacking electrical system and you add a capacitor then you add more load to the alternator**. Now the alternator has to charge the battery, supply the amplifiers AND recharge the capacitor.

## Will a capacitor drain my battery?

An ideal capacitor would be open circuit to DC, so no current would flow, and no energy would be consumed after the capacitor is fully charged. However, real capacitors do have some small leakage current, so, in Real Life, **energy would be consumed from the battery very slowly after the initial charging**.

## Why should you not touch a capacitor?

**Physical contact or close proximity to the open power supply caused a discharge from the capacitor that resulted in an electric shock**. Capacitors can discharge current even when not energized because they hold a charge for some time after the power is turned off.