Best 3000 Watt Inverter (Top 6 Inverters)

A 3000 Watt inverter will do a great job OF converting DC electricity from your 12V battery into 120V AC.

Whether you are camping or on a road trip with your RV, you definitely need an inverter to get a reliable source of AC electricity for all your appliances.

With this in mind, you may find yourself wondering what appliances a 3000-watt inverter can power. Moreover, how much will they cost you and can they run your house during a power emergency.

Worry not, all your questions will be answered in this post.

For your convenience, here is a list of the top brands available on the market:

  • SL Euthtion
  • Renogy
  • Voltworks
  • Krieger
  • Energizer
  • Cobra

This article will review the 6 best 3000 Watt inverters and answer some frequently asked questions that you may have.

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6 Best 3000-Watt Inverters

This review of the 6 best 3000W inverters is divided into two sections:

  • Pure sine wave inverters.
  • Modified sine wave inverters.

If you’ve ever wondered what the main differences between a pure sine wave and a modified wave inverter are, take a look at this article.

Best 3000-Watt Pure Sine Wave Inverters

SL Euthtion 3000-Watt

Main Features

The SL Euthtion 3000W is a pure sine wave inverter. It produces a clean output current similar to the grid electricity, through 2 AC outlets (110V).

Thanks to this major feature it will preserve your appliances and they won’t overheat.  On top of that, at the front of the device, you’ll find a high-power link port for demanding applications (AC, water pumps).

Both the wireless remote control and monitoring screen that displays the batteries remaining power are particularly great. In addition, the unit is built with quality parts and comes with a 1-year warranty.

View price on Amazon

  • Pure sine wave inverter (clean AC output)
  • One high power connection
  • Includes electric cables and spare fuses
  • Wireless monitoring screen
  • Well priced
  • Only one year warranty
  • Only two AC sockets and one USB plug

Final Thoughts

Built to last, with clever features like its wireless remote control, this 3000W pure sine wave inverter is highly recommended. It will safely power any household appliances from a DC source.

Renogy 3000-Watt

Main Features

Similar to other Renogy products, their 3000W pure sine wave inverter is innovative and built with high-quality parts.

Consequently, its efficiency is high, more than 90% and it delivers a clean AC current through 3 outlets (110V AC).

In addition, it features one USB plug for your electronic gadgets. This inverter accepts all types of 12V batteries and has multiple protections to ensure a high level of safety for your appliances. It includes a wired remote control to easily pilot the device.

Finally, it comes with a  2-year warranty.

View price on Amazon

  • Pure sine wave output signal
  • 3 AC outlets
  • Accept all types of 12V batteries
  • Built with quality parts
  • Well priced
  • 2-year warranty
  • Only one USB plug
  • Basic wired remote control (no monitoring screen)

Final Thoughts

When purchasing a Renogy product you get a well-designed and strongly built unit. This pure sine wave inverter will efficiently power your appliances during all your off-grid trips and will last long. On top of that, it comes at a friendly price.

Voltworks 3000-Watt

Main Features

This 3000-watt pure sine wave inverter by Voltworks is the most versatile inverter of our review. It delivers clean AC power through 4 outlets (110V), quite convenient to power multiple devices at once.

In addition, it features 2 USB plugs to charge your electronic devices and a high-power output plug for demanding applications (AC, water pump). You’ll appreciate its clear LCD screen that provides multiple useful information such as the battery state of charge.

On top of that, it comes with a wired remote control. Finally, the inverter is covered by AIG insurance for 18 months.

View price on Amazon

  • Pure sine wave
  • 4 AC outlets and 2 USB plugs
  • Useful monitoring screen
  • High-power outlet
  • 18-month warranty
  • Pricey
  • Bulky

Final thoughts

This 3000W inverter by Voltworks stands out due to its four AC outlets and 18-month warranty. Thanks to its high-power outlet it will have no problem at efficiently powering even the most demanding appliances.

Best 3000 Watt Modified Sine Wave Inverters

Krieger 3000-Watt

Main Features

The Krieger 3000W inverter might not offer as many features as other inverters but it is built with high-quality materials. It is long-lasting and comes with a 3-year warranty. 

The LCD front screen conveniently displays the output power and input DC voltage. In addition, it benefits from multiple protections against overload, overheating, and low/high voltage.

With only 9.1lbs, it is also easy to carry. Ultimately, it is very well priced.

View price on Amazon

  • Built with high-quality parts
  • 2 AC outlets
  • Free installation kit
  • US-based customer service
  • 3-year warranty
  • No monitoring remote control

Final Thoughts

This modified sine wave inverter is incredibly reliable and durable. In addition, it is very well priced and comes with good customer service. 

Energizer 3000-Watt Power Inverter

Main Features

Energizer is a reliable brand when it comes to batteries, and so is their 3000W inverter. It was built to handle inductive loads such as power tools, freezers/refrigerators, and water pumps.

In addition, it features safety equipment that protects against overload, overheating, and low/high voltage. This product has a 2-year warranty and convenient US-based customer service.

You can plug your AC appliances in the two AC 110V outlets and charge your USB gadgets at the front of the device. On top of that, you can monitor the input voltage and power output on the LCD screen.

View price on Amazon

  • Built to last
  • Handle inductive loads such as refrigerators and power tools
  • LCD screen
  • 2-years warranty
  • Well priced
  • No remote control
  • No installation kit

Final Thought

A great 3000W modified sine wave inverter from Energizer that will power all your appliances including the most demanding (AC). The 2-year warranty and US-based customer service will leave you feeling secure in your purchase.

Cobra CPI3000-Watt

Main Features

The Cobra inverter delivers up to 3000W of power (6000W surge) accessible through four 120V AC outlets.  In addition, you can easily charge your USB devices thanks to two USB-A/USB-C plugs.

Its wired remote control is very convenient. It allows you to monitor your inverter inputs and power outputs while charging your USB devices through two extra USB plugs. On top of that, this inverter features multiple safety elements to efficiently protect your appliances.

Finally, it is the lightest and smallest of the 3000W inverters reviewed in our article.

View price on Amazon

  • 4 AC outlets
  • Wired remote control with 2 USB plugs
  • Includes Four 48″ #2 AWG Power cables
  • Lightweight (7.83lbs)
  • Limited Warranty
  • A bit pricey

Final Thoughts

This inverter is a great product. It might be the most expensive of all the modified sine wave inverters in this list but it is a complete package, coming with remote control and all of the essential electric wires.

What Appliances Can A 3000-Watt Inverter Run?

First of all, you should know that there are two types of appliance loads:

  • Resistive load (water heater, TV, laptop…)
  • Inductive load (water pump, power tools, air-conditioning unit, refrigerator…)

Basically, inductive loads need more power to start than their rating power. Depending on the appliance it might need up to 50% more power to start. On the other hand, resistive loads only use their rated power.

Consequently, it is advised that you oversize your inverter compared to the rated power of the appliances you want to plugin.

That said, a 3000-watt would run many electric appliances at the same time:

  • TV
  • electric fan
  • laptop
  • standard size refrigerator/freezer
  • small water pump

What Is The Average Cost Of A 3000-Watt Inverter?

There are two types of 3000-watt inverters:

  • Modified sine wave (MSW)
  • Pure sine wave (PSW)

Pure sine wave inverters are the most efficient, delivering an electric current of the same quality as your utility company. Therefore, pure sine wave inverters are the most expensive.

A 3000-watt pure sine wave inverter costs on average, between $300 and $400.

On the other hand, modified sine wave inverters use cheaper electronic components, therefore their average price is lower.

A 3000 watt modified sine wave inverter costs on average, between $200 and $300.

Can A 3000-Watt Inverter Run My Home?

A 3000-watt inverter is a great option as a backup power source for your home when coupled with the correct batteries.

It is advised that you pair your inverter with 12V lithium batteries, with a 300Ah capacity.

Check out our article about the best lithium batteries – it’ll help you choose the best batteries to pair with your 3000-watt inverter

Is My 3000-Watt Inverter Over Heating?

You might find your 3000-watt inverter hot when it is working. This is totally normal. Inverters have efficiencies of 90%, meaning that 10% of the input power is lost as heat. The more power going through your 3000-watt inverter, the hotter it gets.

A 3000-watt inverter can reach up to 60°C. All the inverters featured in this review have safety equipment preventing them from overheating. Therefore, they are safe to operate and will shut down if the temperature is abnormally high (above 65°C).

What Size Wire Is Needed For A 3000-Watt Inverter?

For your 3000 watt inverter, you will need electric wires for the DC input and the AC output.

The AC outlets of your 3000-watt inverter can only deliver up to 1500W. For demanding loads, you will need to use the power outlet, with electric wires of 10 AWG. The current can reach up to 27 Amps.

For the DC input, a 0 to 3 AWG pure copper wire is recommended. If you want to use your inverter to its maximum capacity, the DC current can reach 250Amps. Therefore, your cable should be thick.

Final Thoughts

A 3000 Watt inverter is a great choice to power most of your common household appliances at the same time.

Remember that it has to be coupled to the correct battery for you to enjoy its full power output.

Lithium batteries are preferred over lead-acid batteries when it comes to heavy loads.

We have published several articles about the best lithium batteries for RVs, boats, and for domestic use. Have a look at them, they will undoubtedly help you in your buying decisions.

Romain Metaye, PhD

Romain Metaye, PhD

Dr Metaye has a Ph.D. in chemistry from Ecole Polytechnique, France. He is a renewable energy expert with more than 11 years of experience within the research world. During his career, he supervised more than 150 projects on clean energy. Off-grid smart systems, solar energy, battery and the hydrogen economy are among his specialties.

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