Top 5 Best 3000 Watt Power Inverters in 2020

Power InverterRated Power/Peak PowerWaveformAC Outlets+USB portsDC InputPriceOur Rating (/10)Our Review
Power Bright PW3500 3500W/7000W Modified Sine Wave 4+0 12V Check Price 9 Click to Read
ENERGIZER 3000 Watt Power Inverter 3000W/6000W Modified Sine Wave 4+4 12V Check Price 9.5 Click to Read
Peak PKC0AW 3000-Watt Power Inverter 3000W/6000W Modified Sine Wave 4+1 12V Check Price 8.5 Click to Read
VertaMax 3000 Watt Pure Sine Wave Power Inverter 3000W/6000W Pure Sine Wave 3+0 12V Check Price 8.8 Click to Read
Go Power! GP-SW3000 3000W/6000W Pure Sine Wave 2+0 12V+24V Check Price 9.4 Click to Read

Power Bright PW3500-12 Power Inverter Review

The world in which we nowadays live relies a lot on electricity and the truth is that it is difficult to imagine life without it even for just a few hours. From your mobile phone to your coffee makers and from the air conditioning to the freezer, everything would be absolutely useless without electricity. Investing money in a very high quality power inverter is one of the best things you can do to make sure that you never run out of electricity and that you can enjoy the wonders of technology even when the context does not actually allow you to do this (such as when there is a power outage or when you are out camping).

The Power Bright 3500 Watt Inverter is one of the strongest ones on the market and the truth is that you may find it very difficult to find another product to provide you with so much (leaving aside the “commercial” and “industrial”-labeled products out there). With an anodized aluminum case, this particular Power Bright is actually built to resist corrosion and purchasing it will definitely be a long-term investment.

The PW3500-12 from Power Bright is a heavy duty inverter that provides up to 32 amps of AC power. Simply plug the inverter directly to a 12 Volt DC battery to power large appliances, heavy duty power tools and many other electronics. It is designed to run hard to start inductive loads such as air conditioners, compressors and off grid refrigerators. This inverter also has an LED display that shows input and output wattages, built-in cooling fan, internal 30A spade-type fuses and an overload indicator. It includes an audible low-voltage alarm and will shut down in case of overload, thermal or short circuit problems.


Key Feature

  • 3,500 watts continuous power output
  • 7,000 watts surge (peak power)
  • Provides up to 32 AC Amps
  • Soft Start Technology
  • Built-in digital display shows DC volts and output power in watts
  • LED power / fault indicator
  • Power on/off switch
  • Includes wireless on/off remote control with 150′ range
  • High-speed thermally activated turbo cooling fan
  • Four 3-prong 110 Volt AC outlets
  • Dual heavy duty DC terminals for easy battery connection
  • Anodized aluminum case
  • One year warranty

Pros and Cons

  • Nice and sturdy design
  • Very powerful and quiet – only makes noise when fan is running
  • Easy to use and control
  • Built-in cooling fan and LCD display

  • No cables, you have to buy them separately
  • No USB port
  • Big and heavy

Buy it Now at Amazon


ENERGIZER 3000 Watt Power Inverter Review

Energizer makes pretty reliable gear and their 3000W option is no exception. This same model is also available in the list of the best 2000W inverters, but we will look at the 3000-watt offering.

This heavy duty Power Inverter connects directly to a 12 Volt DC battery to power microwaves, power tools, televisions, gaming consoles, home electronics and home appliances in your vehicle.

The outlets are simple; it has 4 USB 2.1A and 4 110V outlets. The unit is more expensive than other 3000w inverters but it has features like an awesome mount and a near silent thermal fan. It also features a ground terminal for extra safety. It also features an LCD display, which shows the output wattage or input voltage and battery level. With this inverter, you will never be left without power when you need it!


Key Feature

  • 3000W (15 min) / 2800W continuous / 6000W peak power
  • LCD display – Volt/Watt/Battery Level
  • Ultra silent (thermal fan)
  • 4 x standard North American AC outlets
  • 4 x USB charging ports 2.1A (shared)
  • Tablet charging compatible from USB ports
  • ON / OFF Remote Control (optional)

Pros and Cons

  • Very powerful and cooling fan works very quiet
  • 4 outlets and 4 USB ports
  • No smell when it is running
  • Small and doesn’t slide around when put on the floor

  • More expensive than other 3000W modified sine wave inverters
  • Get warm quickly
  • Included cables are very short. Didn’t use them for installation though.

Buy it Now at Amazon


Peak PKC0AW 3000-Watt Power Inverter

Power up to 4 household AC devices, such as phone chargers, laptops, game chargers and more with this 3000 watt Power Inverter from PEAK. Supplies 3000 watts of continuous power to (4) 110/120 volt AC outlets, 1 USB port. Battery connection cables are included and the inverter features a power on/off switch with fault and power LED indicators, short circuit protection, high/low voltage protection, and an automatic low battery shut off.

The power source must provide between 10.5 and 15.6 volts DC and must be able to provide sufficient current (in amperes) to operate the device. Do not exceed the maximum input voltage of 15.6 volts DC or the inverter could be damaged. This power inverter is for 12-volt battery systems only. A 6-volt battery system will not provide adequate input voltage and a 24-volt battery system will damage the inverter.

Key Feature

  • 3000 Watt continuous power, 6000 Watt surge power
  • Battery connection cables included
  • Remote power on/off switch with fault and power LED indicators
  • Short circuit, over temperature, and high/low voltage protection
  • Low battery shut down

Pros and Cons

  • It has a low price
  • It comes with On/Off remote switch
  • Simple to install
  • Cables are pretty long and feeding it to the place I wanted the remote switch plate was pretty easy

  • Poor design

Buy it Now at Amazon


VertaMax 3000 Watt 12V Pure Sine Wave Power Inverter Review

WindyNation is a familiar brand in solar panel market, their products are designed with the intention of making high quality and low-cost home power solutions available around the whole world. I’m not huge fan of them but their VertaMax 3000W pure sine wave inverter is a great choice if you want to buy a pure sine wave inverter that can power every household appliances.

The WindyNation VertaMax inverter converts 12 volt DC battery power to an exact replica of pure sine wave AC household power. Pure Sine Wave Inverters are recommended for sensitive electronic equipment that requires pure sine wave AC electricity to operate properly. It is designed to deliver power at 3000 watts continues to appliances and 6000W surge.

For safety operation and running of the inverter, it has a reliable design with thermal shutdown, reverse polarity protection via internal fuses, short circuit protection, over-voltage protection, low voltage shutdown, and low/high voltage alarm.

The VertaMax Pure Sine Wave 3000 has 3 grounded AC outlets (115 AC for USA household devices). Also, includes a hard wired terminal block for permanent AC connections. LED Display shows DC battery voltage and Watts (AC power consumption), helping you to monitor power usage.

Pros and Cons

  • Built strong and nice
  • Doesn’t make any noise
  • Lower price than other pure sine wave inverters
  • Easy to use and install

  • Only 1-year warranty
  • It doesn’t come with cables and remote switch
  • No USB port

Buy it Now at Amazon


Go Power! GP-SW3000 3000-Watt Pure Sine Wave Inverter Review

If you want to buy a pure sine wave inverter, you need to know that it will be much more expensive than a modified sine wave inverter. But the GP-SW3000 inverter from Go Power is super expensive. However, with regard to quality, it is extremely good. If you have been tired of all the issues with your cheap inverters, now is the time for replacing it.

Go Power! Pure Sine Wave Inverters are used in a wide range of applications including remote homes, RVs, sailboats, and powerboats. It will operate most televisions and VCRs, personal computers, small appliances and tools such as drills, sanders, grinders, mixers, and blenders.

This power inverter has two GFCI outlets and can use the GP-DC-KIT5 to connect to your batteries with ease. As long as the load is not greater than 3000 watts this power inverter will run it. Available with 12V or 24V input, and optional remote.


Pros and Cons

  • There are 2 options 12V and 24V
  • Very good quality and nice design
  • Good customer support
  • Powerful and quiet
  • 2-year warranty

  • Expensive

Buy it Now at Amazon

Determining the DC Power Requirements

Powering multiple appliances from the high-power 3000W inverter requires a 12 volt or 24-volt bank of batteries (several batteries). Assuming that you will buy for 12V batteries system, to calculate the approximate power in amps a 12-volt battery bank has to supply you need to know the current, or amps required for powering the continuous AC load.

A shortcut method is to divide the continuous AC load wattage by 10. For example, the continuous AC load is 3000 watts. The current (amps) is: 3000/10 or 300 amps at 12 VDC. Add to the load any DC appliances that may be powered by the battery bank.

Sizing the Battery Bank

To determine the minimum battery bank ampere-hour rating that you will need to operate appliances from the inverter, and any DC appliances powered by the battery bank, follow these steps:

  • List the maximum wattage that the inverter has to provide (as above).
  • Estimate the number of hours the appliances will be in use between battery recharges. This will differ depending on appliances. As an example, a typical home-use coffee maker draws 500 watts during its brew time of 5 minutes; it maintains the temperature of the pot at about 100 watts. The typical use of a microwave oven is only for a few minutes. Some longer operating time appliances are lamps, TVs, computers and refrigerator/freezers.
  • Determine the total watt-hours of energy needed. Then multiply the average power consumption in watts by the number of hours of run time. For example: 3000 watts for 10 hours = 30,000 watt hours. Using the 3000 watts (or 300 Amps) for 10 hours example as above, then 300 amps is needed for 10 hours. This provides us with the basic amp-hours (AH) of battery that is required. Ten hours at 300 amps equals 3000 Amp Hours (AH).


The type of batteries you use to power your high power inverter is important. Operating a high-power inverter will routinely discharge batteries and they will require frequent recharging. Batteries used to start engines are not designed to repeatedly charge and discharge. I recommend using “deep-cycle” or “marine” rated batteries.

Cable Gauges

When connecting the inverter to a battery bank use the thickest stranded insulated copper wire available, in the shortest length practical. Recommended cable gauges are as follows:

3000W = 0AWG

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