Best 3000 Watt Inverter 2022 (Reviews & Buying Guide)

By:Michael Johns

best 3000 watt inverter

Let’s talk about 3000 watt power inverters, shall we?

If you are an owner of a truck, caravan, or RV, you will always need some energy to run your electronics and appliances on the go. 

There are many instances that you will feel the power crunch. Especially those devices that require more amp and watts. When you live off the grid, power requirements become even more crucial. So what is the solution for your power needs?

An easy solution is to buy the best 3000 watt inverter available. But there are so many products in the market you might be finding it hard to pick the best one. 

Well, don’t worry! Our experts are here to help.

For those not very familiar with an inverter, it is a device that converts the DC power of your vehicle battery to AC power similar to that you get in your homes. You can happily run your devices like TVs, refrigerators, tools, whilst also charging your mobile phones, game consoles, and other similar USB-compatible devices.

This article will help you pick the best 3000 watt inverter for your needs for any indoor and outdoor activity.

Let’s get stuck in!

What Will a 3000 Watt Inverter Run?

A 3000 watt inverter will easily run multiple home appliances and devices at the same time. If you want to draw 2500 watts then a 3000 watt inverter is necessary. It is best practice to have an inverter with 20% more watt output than you want to power. This is because the inverter will use some electricity for its own operation, plus they are not always 100% efficient. So a 3000W inverter is best for up to 2500W of appliances. This can be one single device or multiple running simultaneously.

3000 watt power inverters will easily run things like microwaves, refrigerators, washing machines, small heaters, fans, coffee makers, low-wattage hairdryers, laptops, TVs, and smartphones.

Here’s a list of appliances and average watts to give you an idea of what you could run:

Coffee Maker700 – 1500
Toaster1000 – 1500
Refrigerator60 – 250
Freezer300 – 500
Washing Machine1200 – 2000
Dish Washer1500 – 2000
Circular Saw1200 – 1700
Computer100 – 200
42 inch TV80 – 120
PS570 – 200
Fan40 – 80
Phone / Tablet5-10
Laptop 30-60

To work out if it can run your appliance then check its wattage rating – this can often be found on the label or operating manual.  Plus you can also use a wattmeter or use the formula ‘volts x amps = watts’.

Best 3000 Watt Power Inverter Reviews

When you begin your search for a 3000 watt power inverter, finding the right one may seem easy at first. You will find that there are numerous models available in the market and online. But you may soon get confused about what features, size, and specifications are suitable for you. We have made your work easy with our detailed analysis and review. 

1. SL Euthtion 3000W Pure Sine Wave Power Inverter

Ok time for a sleek pure sine wave power inverter.

The SL Euthtion is a high-quality modern pure sine wave inverter instantly converting 12V to 120V AC power. Of course, you’ll get 3000 watts of continuous and 6000 watts of peak power. 

Being a pure sine wave inverter, it provides awesome efficiency and can power even the most sensitive of devices like LED TVs, blenders, and gaming computers. It comes with 2 AC outlets and one USB port for you to quickly run multiple appliances while charging a phone or tablet.

An LCD screen shows all the important operational data while a wireless remote switch enables you to effortlessly control the device from a distance. 

To get going easily it arrives with installed grounding wires inside the inverter plus six safety features. You’ll be guarded immediately against over-voltage, under-voltage, power overload, overheating, reverse polarity, and short circuits. Plus inbuilt dual fans keep things cool as a cucumber when drawing big loads.


  • Pure Sine Wave Inverter
  • Includes electric cables and fuses
  • Wireless monitoring screen
  • Remote control


  • Only 2 AC outlets
  • Only 1 USB

2. Go Power! 3000W Heavy Duty Modified Sine Wave Inverter 

If you want to buy a 3000-watt inverter, then you’ll struggle to go wrong with the GO Power Heavy Duty inverter. It is a modified sine inverter pumping out 3000 watts of continuous and 6000 watts of peak power.

One thing we love about this beauty is the weight of only 10 pounds, making it quite portable for its output. 

What else? Well, it comes with 4 AC outlets and one USB port. You can effortlessly use the AC outlets for vital devices like TVs, game consoles, microwave ovens at the same time. All the while the USB port is charging your mobile phone to keep you online. After all, you’ve got to keep up with those group chats!

A handy little LCD screen keeps you updated with the input voltage, output voltage, and output wattage. Plus you’ll be completely protected from overload, short circuits, and overheating thanks to various safety features. Finally, never move a muscle to fire up with the wired remote control.

Go Power never let you down when it comes to a reliable heavy-duty power inverter!


  • 4 AC outlets
  • LCD screen 
  • Lightweight and portable


  • Modified Sine Wave 

3. Renogy 3000W 12V Pure Sine Wave Inverter

Swooping in high on this review is the Renogy inverter. Some tout the company as the kings of power inverters. I’m not sure such a thing exists, but this is a fine choice to suit most of your needs.

Get 3000 watts of continuous pure sine wave power with an innovative design and superior product quality. 

You’ll love the clean and smooth output for your current sensitive devices such as TVs, medical equipment, and motorized appliances. With 3 AC outlets and 1 USB port, there’s awesome versatility for all your electronics to run at the same time without missing a beat. Plus, a wireless remote helps you power on anywhere, anytime.

Adding to this, the unit has an error alarm system and LED indicators for safety and gets full protection features for under-voltage, over-voltage, overheating power overload, and grounding fault. Dual cooling fans keep everything cool, even when running for hours on end.

She’s a smooth operator with everything you need to be satisfied!


  • Pure Sine Wave Inverter
  • 3 AC outlets
  • Superior quality
  • innovative design


  • Only 1 USB port

4. VOLTWORKS 3000 Watt Pure Sine Wave Power Inverter

The team at VOLTWORKS also offers this true-rated power inverter designed to provide 3000 watts of pure sine wave output power. It comes with 4 AC outlets, two 2.4A USB ports, one AC terminal block, an LCD screen for display, and a remote controller. 

It’s quite simply packed with features for incredible adaptability.

Happily use this device for virtually any application, indoors and outdoors. You can safely use it in your campervan, RV, boat, or home to power devices like coffee makers, TVs, laser printers, tablets, microwaves, and smartphones. The remote controller has a 15 feet wire letting you control the device from a distance. All the while, the LCD screen displays the battery status, output voltage, input voltage, and protection code in case of any fault. 

With its advanced protection system, you’ll be completely safe from short circuits, over-voltage, under-voltage, over-temperature, power overload, and overheating. 

On the outside, you’ll benefit from durable aluminum protecting it from accidental bumps and falls. Finally, a built-in ultra-silent cooling fan keeps temperatures in check without becoming annoyingly loud.

A feature-packed power house!


  • Pure Sine Wave Inverter
  • Wide uses
  • 4 AC & 2 USB
  • Remote and LCD screen
  • Advanced protection features


  • Heavy and bulky
  • Expensive

5. Krieger 3000 Watts Power Inverter

If you didn’t already know, Krieger is well-known for producing well-priced yet reliable power inverters.

Its KR3000 high-power inverter delivers 3000 watts of continuous power and 6000 watts of surge power. This inverter is a modified sine wave inverter that quickly converts the 12V DC power of your battery to 120V AC power. Easily connect the DC battery cables to the 12V battery, and you are ready to go. 

An ideal device for any emergency, hurricane, or power outage situation. 

You’ll be getting 2 AC outlets, a wired remote control, 3 feet battery cables, ANL inlines fuses, and a built-in hardwired kit. The device has all the protection features you would expect, safe from power overload, over-voltage, under-voltage, high-temperature, and short circuits. 

For ease of use, all this information is displayed on the LCD screen along with the input voltage, output wattage, and battery level for better device monitoring. The device is tested and approved by METLAB for performance and safety.

A no-fuss piece of kit for your emergency power needs.


  • High-Quality Parts
  • 2 AC outlets
  • A 3-years warranty
  • Free installation kit


  • Plastic shell

6. Energizer 3000 Modified Sine Wave Power Inverter

As you know, Energizer makes awesome batteries but it also lends its hand to high-quality power inverters too.

The Energizer ENK3000 is a modified sine wave inverter providing 3000 watts of continuous power and 6000 watts of surge power. This inverter is designed to convert 12V DC to 120V AC. A perfect device to use during an emergency, hurricane, snowstorm, or power outage. 

It features two standard North American AC outlets, 2 USB ports of 2.4A each, a hardwire kit for AC output connection, and 3 feet AWG battery cables for connection. You’ll be able to hook up and start running your off-grid setup almost instantly.

Happily use this inverter to power devices like TVs, refrigerators, gaming consoles, coffee makers, mobile phones, and others simultaneously. 

The Energizer ENK3000 has all protection features and offers complete safety from power overload, under-voltage, over-voltage, high temperature, and short circuits. It also has an LCD screen giving you a read-out of the input voltage, output wattage, and battery level. The unit is tested and approved by METLAB for safety and performance.

A heavy-duty tool you can rely on for all your power needs indoors and outdoors.


  • Heavy-duty inverter
  • LCD screen
  • Two years warranty
  • 2 USB


  • No remote control

7. Cobra PRO 3000W Professional Grade Power Inverter

We love the Cobra power inverters for their sturdy build quality and range of included features.

The Cobra PRO is a professional grade power inverter distributing 3000 watts of continuous power and 6000 watts of peak power. This modified sine wave inverter is ideal for charging and power devices like TVs, laptops, sound systems, mobile phones, and many others with complete safety and reliability. 

Run all your appliances simultaneously with a mammoth 4 grounded AC outlets and 2 USB ports that can power your office equipment, entertainment devices, power tools up to 3000 watts. It’s also remote control (included) compatible so you can add more flexibility to your operation if you want.

What’s really cool is that the remote control features a 3A USB-A and a USB-C port, so you can mount the unit in the back of a vehicle and fast charge in the front!

A 7-color LED indicator that displays the battery voltage and current consumption. It offers five protection features for complete safety from over-temperature, reverse polarity, over-voltage, low-voltage alarm and cutoff.  For quick installation, you also get heavy-duty two back and two red cables for double battery connection. 

An innovative device to run power in your car, RV, or truck on the go.


  • Perfect for entertainment devices
  • GFCI protected outlets
  • Pentagon protection features
  • Wired remote with USB ports


  • Expensive
  • Limited Warranty

8. AIMS Power 3000 Watt Pure Sine Power Inverter

The always reliable AIMS brings this powerful, pure sine wave inverter that gives 3000 watts of continuous power and 9000 watts of surge power. This inverter safely converts the 12V DC power to 120V AC power. 

Enjoy all the modern features including 2 AC outlets, an On/Off switch, and an optional remote controller. An ideal device for your truck, boat, RV, a cabin where you can power all devices like LED TVs, refrigerator, power tools, digital clocks, speakers, and much more.

The inverter provides clean and safe power to your device without any damage. You’ll be entirely safe from power overload, over-temperature, high-voltage, low-voltage, short circuits. It also has a high-voltage and low-voltage alarm for added safety. Dual cooling fans and isolated ground neutral also protect the inverter.



  • Heavy 
  • Pricey

9. POTEK 3000 Watt Power Inverter 

Check out this 3000 watt Bluetooth power inverter. That’s right, BLUETOOTH. Everything is better with Bluetooth, right?

This well-built converter provides you with 3000 watts of continuous power and 6000 watts of peak power whenever required.

You’ll easily be able to power multiple devices on the go thanks to the 4 AC outlets and 2 USB ports suitable to power electrical devices like coffee makers, tools, refrigerators, smartphones, and other appliances. 

Power on in a heartbeat with the Bluetooth remote control while multi-protection features keep you safe from under-voltage, over-voltage, over-temperature for the inverter and batteries. Plus inbuilt smart fans start spinning when the device temperature is over 104℉.


  • Bluetooth Power Inverter
  • Multi-purpose charging
  • Multi-protection features
  • Intelligent temperature control


  • Gets heated on full load

10. The Tripp Lite Power Compact Inverter 3000W

Tripp Lite offers this compact inverter that still delivers 3000 watts of power and 6000 watts of peak power. It comes with an ample 4 AC outlets suitable to power your devices like TVs, refrigerators, DVD players, music speakers, and tools. Plus 2 USB ports will keep your phone and tablet fully juiced at all times.

The casing is made of rugged metal protecting the inverter from falls and bumps. She’s a fabulous travel buddy.

Effortlessly convert your 12V DC battery power to 120V AC output. You can easily carry this inverter in your car, truck, RV and use it outside on a campsite or indoor power outage situation. Of course, this no-fuss device comes with all safety features, and its automatic shut down feature prevents battery drain.

A no-fuss option with everything you need to get the job done!


  • 4 AC outlets
  • Automatic shutdown 
  • Rugged metal casing


  • No LCD screen

Education: Choosing a 3000 Watt Inverter

When reviewing power inverters our experts take a number of different factors into account from safety to modern features. Below are the criteria to help you choose the best 3000W power inverter for your needs.

Pure Sine Wave vs Modified Sine Wave

Pure and modified sine wave can be a little confusing. If you want the full low down then read our full guide here.

Very quickly, here’s the main difference:

Pure sine wave: This is the best quality inverter that can be used to run almost any type of appliance, even the most sensitive of devices like medical equipment, LED TVs, and power tools. This is because it delivers a smooth constant flow of current just like the mains electricity at home.

Modified sine wave: These are cheaper but come with performance drawbacks. Modified sine wave is not a smooth flow of current and can lead to fluctuations in power. This means they are not suitable for high-end sensitive devices like HD TV or computers. They are perfectly adequate for charging portable gadgets like phones and laptops plus running non-sensitive home appliances like lighting and mini-fridges.


The number and type of outlets are crucial in deciding what you can power at any one time. Generally, you’ll find outlets including standard AC (like a socket in the wall at home) USB, and USB-C ports.

If you want to run a large number of home appliances then it’s best to look for 3 or 4 AC outlets on your inverter. Plus if you want to fast charge phones and tablets then make sure you pick a unit with enough USB ports for your needs.


Safety is non-negotiable when it comes to electronics. There is a very real fire risk from short circuits and overheating. Plus you also want to protect your electronics from things like power surges. All of the products listed above have the best safety features which include things like smart cooling fans, fuses, alarms, and guards against power overload, over-temperature, high-voltage, low-voltage, and short circuits.


There’s a whole wide range of features to choose from on power inverters these days. You can go for the basic no-fuss option or find a high-tech unit with all the bells and whistles. Features to consider include:

  • Fast charging
  • Bluetooth
  • Wireless charging
  • Remote control
  • Smart fans
  • LCD screen
  • Digital display


Finally, durability is a consideration. Obviously, we all want something that lasts forever but we still need to balance quality and price. All the best inverters above have great build quality but some are more durable than others. For example, there’s aluminum outer casing for lightweight yet strong machines, or there are plastic shell options too.

If you want something to use every day in your truck or RV then perhaps choose something with a metal casing to protect from the wear and tear of regular usage. If you just want an emergency backup then you might be able to get away with a cheaper plastic option.

The choice is yours!


How much is a 3000 watt inverter?

A 3000 watt inverter will cost you between $150 to $600. The cost depends on the type of inverter you buy. For example, a pure sine wave power inverter will be over $350 whereas you might be able to get a basic modified. 

Tips for Installing a Power Inverter

Wondering how easy it is to install an inverter once it arrives? I’ll go through the best way to install your equipment so you can start enjoying off-grid power quickly. Before we start, I will say that if you are not sure then consult the help of a professional and don’t rely completely on this guide!

Here’s a step by step installation:

Step 1. On your leisure or vehicle battery, identify the positive/red and negative/black terminals. This is where you will hook up.

Step 2. Ensure your cables are connected to the input terminal (red and black) on your power inverter. You can use alligator clips cables or O-rings to make the next step easy.

Step 3. Hook up the corresponding cables and battery terminals. e.g. black to black (negative to negative) and red to red (positive to positive.) Ensure the conductive metal surfaces are securely connected together.

Step 4. Turn on your power inverter to check that everything is running smoothly – usually signaled by a green LED light.

Step 5. You can now plug in your appliances and devices to run them via the AC and USB ports as you need.

Pro tip: If you are running your inverter from a vehicle starter battery, ensure you run the engine when the inverter is connected to avoid quickly exhausting your battery. Plus ensure you maintain your inverter for maximum efficiency.


What is the most reliable power inverter?

There are many reliable power inverters available today if you want a reputable brand then look for industry leaders such as BESTEK, AIMS Power, Renogy, Energizer, Go Wise, or Cobra. A good choice for reliability is the Renogy 3000W 12V Pure Sine Wave Inverter. 

How much battery power do I need to run a 3000 watt inverter?

A common battery size is around 100Ah (100 amp hours) although the best size depends on how much power you draw through the inverter. You could go up to 300+ AH but these batteries weigh about 90KG. To work out how long a battery will last use the following formula:

  1. Work out how many amps your inverter draws by – watts divided by 10

e.g. 300W / 10 = 30 Amps

  1. Divide your battery size by amps drawn – 100AH divided by 30 = 3.3 hours

So if you were to run 300 watts from a 100AH battery it would last 3.3 hours.

Here are some more examples:

What size wire is needed for a 3000 watt inverter?

1/0 AWG cables are required to run a 3000 watt inverter.

Will a 3000 watt inverter run a refrigerator?

Yes, a 3000 watt power inverter should be able to run most refrigerators. On average a home fridge uses between 300 and 800 watts so will run nicely on this sized inverter.

What size fuse should I use for a 3000 watt inverter?

The best-sized fuse to use for a 3000 watt inverter is a 300 DC AMP fuse.

Will a 3000 watt inverter run an air conditioner?

Yes, most air conditioners will run nicely from this sized inverter. Power draw from air-con is usually between 1800 and 2500 watts.

Final Thoughts

That’s it, everything you need to know about the best 3000 watt inverter from reviews of the top products to installation tips!

If you’ve read this far you may well have found your perfect addition to your off-grid power setup whether it’s an RV, boat, semi-truck, home, or elsewhere.

Still deciding? Then refer to the list of 3000 watt power inverter reviews above to find a reliable and suitable product for your needs.

Otherwise, you can read our 2000 watt and absolute best inverter guides for extra choices.

Thanks for reading.