The Best Power Inverters for your Boat

One of the challenges when it comes to owning a boat is the power you need to run various electronic gadgets and devices at sea. Getting everything to get you from one place to another is one thing, and using a battery to power devices and appliances for convenience is another story.

If you like to get on your boat, or if you own a yacht, you will need an inverter, as well as a stable battery source and the necessary accessories to run the boat.

This article will show you what to consider when choosing the inverter for your boat, as well as some of the best inverters available on the market today.


Power on your boat: Inverter vs Generator

When it comes to boats, you need an inverter or generator to run your appliances. The two often go hand in hand on ships, with larger devices using the latter and smaller ones using the former.

Inverters are usually quieter than generators and do not require as much maintenance, but their performance depends on the capacity of the battery.

The usual threshold or main consideration would be that if your watt-hours were above 2000 per day, a generator would be the best option. You can also use both in combination, where inverters would be used when little power is needed, such as meals or docking, and for high power or energy devices, a generator would be used.

Inverter Types According to Size

There are different types of inverters manufactured to meet different power requirements, and each of them are listed below.

Portable Inverters
These are the types that can also be used in cars and plug directly into the cigarette lighter socket, which is common in various systems. There are West Marine power converters that are best for this. Using it is also extremely easy and it doesn’t take much to work on the complicated cables. These portable inverters are best at 400W or less, and are best if you have a laptop and some light bulbs on the deck.

Inverter / Charger
These are inverters and chargers bundled into one device, and they make things easy for you in more ways than one. Most have an automatic transfer switch that makes it much easier to switch between reversing and charging the batteries. However, these should be installed by professionals as they can be prone to damage if not properly connected.

If you want to regularly use power converters for your boat, this is the best decision for you. It has 400 watts or more and can be connected directly to the battery tank. These usually also have special plugs for appliances, but you may need to make some adjustments to your boat’s AC wiring. However, most advanced transfer services allow for existing wiring configurations.

Things to consider when choosing a power inverter for your boat

If you use sensitive electronic devices such as stereos and laptops, it is best to buy a pure sine wave inverter as it removes static from radio and television and can help preserve the life of your device. Modified sine wave inverters also work, but only for simpler devices or devices that don’t have complicated circuitry like basic lighting.

span capacity:
Overvoltage is commonly seen in air conditioners and refrigerators, especially appliances that use a motor. Ideally, the peak capacity should be twice the continuous current capacity of the devices. Inverters that cannot cause overvoltage means that the device cannot be switched on.

Remote control
This is best for large boats that make it inconvenient to move or have to go to the power source to turn off the inverter. With a remote control that makes it easy to turn the inverter on/off, you can control the inverter from anywhere.

Knowing the Right Power Inverter in terms of Capacity

Design rule
The best inverter you can get is one that is 20% larger, in terms of amp hours. This means that if you have a 200 watt inverter, you will get the best 400 Ah battery capacity.

Electrical loads of household appliances
Look up the power of various electrical loads and calculate how many amps it can work. It is important that you purchase an inverter that is compatible with the DC load of your battery.

Reviews of our favorite inverters for your boat

1. Power TechOn PS1003 2000W Pure Sine Wave Power Inverter

With 5 different protection systems and a total harmonic distortion of <3%, you can be sure that this is one of the highest quality inverters on the market. The five protection systems include overvoltage protection, undervoltage protection, thermal protection, overload protection and an undervoltage protection alarm. When something goes wrong, you know what it is without having to dissect the device, thanks to the lighting. With quality materials comes quality and efficient operations.

It belongs to the mid-range for power converters in general, and it’s a good deal if you’re looking for an affordable pure sine wave converter that you can use for small and sensitive electronic devices.

This inverter converts from 12V DC to 120V AC and comes with three AC outputs. It has three power outlets, a 5V USB port and 2 battery cables plus an external switch. The maximum power is 4000 W. It is designed for use in cars, boats and even for electrical emergencies. All these stats make it a great buy for its overall price.

GoWISE Power 2000W Pure Sine Wave Power Inverter 12V DC to 120V AC with 3 AC Outlets + 1 5V USB Port, Remote Switch and 2 Battery Cables (4000W Peak) PS1003, 2021 Version, Grey

  • GoWISE Power PURE SINE 2000W continuous / 4000W peak current, 12V DC to 120V AC converter with black and red wires with ring terminals, remote switch, 5 types of protection systems and 4 output jacks
  • Ideal for use in cars, boats and for emergencies in the event of a power outage, it ensures maximum efficiency with computers, sensitive equipment and more.
  • 5 protection systems: thermal protection, overload protection, overvoltage protection, low voltage protection, low voltage protection alarm
  • Total Harmonic Distortion (THD) <3%; Cooling fan temperature control and low interference soft start technology. Output voltage: AC 120V; Frequency: 60Hz


  • Protection of five systems against electrical accidents
  • Pure sine wave function with ultra-low THD
  • Smart and silent cooling fan


  • Some reports that the inverter has problems with higher wattage devices
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2. Magnum Energy MS42024PAE MS-PAE Series 4000W 24 VDC Pure Sine Inverter

The Magnum Energy line of inverters is known for its exemplary quality. Its robustness makes it easier to mount on surfaces, making it good for boats. Your charger has also been adjusted for the power factor, to ensure that the devices do not break down in terms of voltage, while using 25-30% less power. The less energy wasted, the better the quality.

They say you pay for what you get, and the Magnum Energy line is definitely at the higher end of the price range for this inverter powerhouse.

Another real deal when it comes to power converters is this one from Magnum Energy. It is designed for high power consumption, as well as sensitive electronic devices, while at the same time saving and energy efficient if you need an output of more than 120 V. It is one of the devices that meet the UL 1741 requirement, so you can be sure of your safety. We really wouldn’t bother buying this inverter even if it means a lot more.

Magnum Energy MS4024PAE MS-PAE Series 4000W 24VDC Pure Sine Inverter/105 Amp PFC Charger/120V-240V Input/Output, Power Factor Corrected (PFC) Charger, Safe and reliable, Versatile mounting, Multiple ports, Convenient switches

  • Power Factor Corrected (PFC) Charger – Our PFC charger is built into all our inverter chargers. It consumes less power from a generator than a standard charger, using 25-30% less AC power than standard chargers.
  • No series stacking required – the unique design of the MS-PAE series can supply 120 and 240 volts in one unit, eliminating the need to stack two units for 240 volts
  • Parallel Stacking – You can parallel up to four inverters/chargers for up to 17.6 kW of power at 120/240 V. MP panels and router are required for MS-PAE series parallel stacking
  • Safe and Reliable – The MS-PAE series is ETL listed according to the stringent requirements of UL 1741, 1st Edition and CSA C22.2 #107.1-01 for renewable energy installations.
  • Pure Sine Wave – Turn on your televisions, stereos, plasma screens and other sensitive electronics without worry. Pure sine wave inverter and power factor correction charger provide clean and reliable inverter power with a low total harmonic distortion (THD) of less than 5%


  • Clear signal; perfect for audio and TV use
  • Compatible for parallel stacking
  • Certifications guarantee safety


  • Very few negative aspects of this investor have been observed.
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3. ProMariner 02012 True Power 2000PS Inverter/Charger

Another pure sine wave inverter you can use for boats is this one from ProMariner. It comes with a power factor of 1.0 and also has a peak value of 2.8x which is one of the best on the market. It also has a transfer switch to quickly switch to AC power.

He is also in the top group in terms of price.

This 2000 watt pure sine wave inverter also comes with a 12 volt 70 amp battery charger. It is fully automatic and serves both to charge batteries and to act as an inverter. It comes with 2.8x peak power and 1.0 power factor, as well as 7 selectable battery charge profiles and a direct AC power switch. This last feature makes it one of the best.

ProMariner 02012 True Power 2000PS Inverter/Charger – 2,000 Watt True Sine Wave Inverter with 12 Volt, 70 Amp Battery Charger

  • Fully automatic battery charger and inverter
  • Pure Sine Wave AC Output
  • 2.8x peak value with 1.0 power factor
  • 7 selectable 3-stage battery charge profiles
  • Direct AC Switch


  • Charger plus inverter in one
  • Top quality
  • Perfect operation


  • Nothing to report yet!
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4. Cantonape 2000W Pure Sine Wave Power Inverter

The manufacturers behind this inverter claim that it is a “true” pure sine wave inverter that converts 12 VDC to 110 V AC, at a frequency of 60 Hz. It comes with built-in multiple protection schemes against electrical accidents such as overload, short circuit, overheat, reverse polarity and over voltage, which would help make applications safer. The exterior is made of solid aluminum which provides protection against drops and makes the cooling process more efficient.

It’s a great buy considering the average price for an investor with such wealth.

The special design makes it one of the best of all. It comes with an LCD and LED display to effectively display the voltage both input and output, as well as a cooling fan with smart and convenient cooling. Given the sturdy construction, we recommend that you take it with you on your boat. It also comes with the crimpers, manuals and fuse replacements you need.

Cantonape 1500W Pure Sine Wave Inverter 12V to 110V 3000W Peak Power Converter DC to AC with LCD Display, Dual AC Outlets for Car Boat Truck RV Solar Power (Pure Sine Wave 2000W)

  • POWERFUL OUTPUT: TRUE pure Sine Wave AC OUTPUT. Convert the power from DC 12V to AC 110V 60Hz. Provides 2000 watts of continuous pure sine wave power and 4000 watts of peak power. Great High Efficiency: Conversion efficiency > 90%. The rated output power of this device is 2000 watts, it could certainly be realized in reality.
  • MULTI PROTECTION: Built-in REPLACEABLE fuses to protect your device, 4 extra 40A fuses come together with the replaceable package. 6 types of protection against: overload / short circuit / overheating / reverse polarity / under or over voltage protection. Make your batteries and devices safer. And we have 12 months warranty.
  • SPECIAL DESIGN: LCD and LED display: battery voltage and output voltage, easy to know the battery status and output. Intelligent temperature control cooling fan: Adjust the fan speed according to the internal temperature, quieter and smarter. The durable aluminum housing offers advanced protection and is easier to cool. Isolated ground neutral. Thanks to its robust construction, the inverter can withstand harsh environments.
  • MULTIPLE OUTLET: Dual US Power Outlets Plugs are designed to easily insert two oversized plugs at the same time.
  • WIDE APPLICATION: Applies to inductive loads: e.g. refrigerator, refrigerator, electric drill, etc. High-quality power backup for home power supply, ideal for sensitive electronics and appliances. Ideal for use on vacations, work trips and camping. All major imported mosfets with strong conductivity.


  • LCD and LED screens for better control of operations
  • Solid aluminum housing
  • Dual outputs


  • Some report having trouble with slow cookers.
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5. Renogy 2000W 12V Pure Sine Wave Inverter with Power Saving Mode

Another pure sine wave that it really delivers is this one from Renogy. It comes with an LED indicator to detect electrical accidents before they happen. It’s also quiet in operation, as you won’t hear any hum or static, especially between devices that require a pure sine wave for clearer signals. The ventilation is also at high speed and works at a low temperature. It also has a five-stage save mode.

At a mid-range price point for this power range, it’s still worth buying with all the safety features and solid, hassle-free operation.

The ship can be noisy in its own right, and it would be great to get a device that doesn’t add to the sound in the ship, and this is something the Renogy can provide. It also comes with a power saving mode which is the feature we like the most. A stable power supply is hard to find for boats and so you would need an inverter to save money.

Renogy 2000W 12V Pure Sine Wave Battery Converter, ETL Listed with Built-in 5V/2.1A USB port,and AC Hardwire Port Solar Power Inverter

  • Optimized for 12 VDC system voltage. It provides a high-quality waveform with little harmonic distortion.
  • Overload protection for both DC input and AC output to prevent damage to components and the device.
  • Dedicated LED indicators for undervoltage and overvoltage protection, overheating protection, overload protection and short circuit indication.
  • High speed fans to operate the inverter at low temperatures.
  • Residual current circuit breaker (GFCI) protection. ETL listed with built-in 5V/2.1A USB port and AC wiring port. 4AWG cables and remote control with 19ft cable included


  • 5-stage power saving mode
  • Low temperature and high speed ventilation
  • Quiet operation for quiet decks


  • No USB drives for chargers and the like
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6. XYZ INVT 2000W Pure Sine Wave Inverter 12V DC to 120V AC

In terms of smart temperature control, this is one to go for. For safety, it also comes with AC grounding design, in case you use it for bottoms, avoiding shock due to grounding. It is designed for travel due to its small size which is why it has one of the most robust designs out there. It also uses the most advanced technology in software and hardware design, as well as software programmed with MOSFETs.

It’s half the price of other brands listed here, but in terms of longevity and basic functionality, it’s worth paying for.

Efficient conversion, compact size and cooling system, as well as grounded safety features are just some of the reasons we really love this inverter. To top it off, it also comes with overvoltage and undervoltage protection.


  • Automatic over and under voltage shutdown
  • First level safety in use
  • Advanced design and technology


  • Only 2 plugs, no USB drives
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7. SUNGOLDPOWER 2000W Peak 6000W Pure Sine Wave Power Inverter

All basic functions in one. This unit is a combination of all the essentials to be on a boat. These include a battery charger, GFCI jack, remote control, and low/idle current and low frequency detection mechanisms. It also comes with the highest speed fans to keep the inverter running at low temperatures.

With the rating of the high power inverter and the advanced features it has, it can be understood that it belongs in the higher segment in price.

This device is more than just an inverter, it can also be used to start a generator when the battery voltage is already low. It also comes with all the necessary protection mechanisms, making it perfect for its price.

SUNGOLDPOWER 3000W Peak 9000W Pure Sine Wave Power Inverter DC 12V AC 120V with Battery AC Charger Solar Wind Power Inverters LCD Display Low Frequency Solar Converter

1. This LFP series pure sine wave inverter is a combination of inverter, battery charger and AC automatic transfer switch. GFCI Jack, Low Frequency, Low Idle Current, BTS Cable, Remote Control
2. Adjustable charging current: The maximum charging current can be adjusted from 0% to 100% using a coating switch to the right of the battery type selector. This is useful if you are using our powerful charger on a small capacity battery bank. The cladding switch can effectively reduce the maximum load current to 20% of its peak. Selecting “0” on the battery type selector will disable the charging function.
3. AC/Battery Priority: Our inverter is designed with AC priority by default, when AC input is present, the battery will be charged first, and the inverter will transfer AC input to power the load. The inverter can be easily adjusted for battery priority via a DIP switch. If you choose battery priority, the battery inverter will reverse despite the AC input.
4. Auto Gen Start: The inverter can be adjusted to start a generator when the battery voltage drops. When the inverter goes into low battery alarm, it can send a signal to start a generator and turn off the generator after the battery is charged. The auto-generate launch feature only works with generators designed to work with this feature.
5. Protections: AC input over voltage protection / AC input low voltage protection / Low battery alarm / High battery alarm / Overheat protection / Overload protection Short circuit protection (1s after failure) / Feedback protection.


  • More than just a charger
  • Low consumption at rest
  • Best for marine use


  • Difficult to find spare parts
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8. 3000W Modified Sine Wave Inverter by Bennett Marine

Not all boat inverters need to be pure sine wave. If you are looking for a custom sine wave inverter for your boating needs, this is a great choice for you. It is designed for high power requirements and is also a great option if you need a lot of power for backups or for multiple devices at once.

With its massive and solid build, it’s just over $400, which you can buy a pure sine wave inverter for.

It’s basic but sturdy. It’s not really designed for devices that need a pure sine wave, but for others that need a lot of power, this is one you can rely on. Has 4 outlets, far more than other brands with similar ratings

Go Power! GP-3000HD Heavy-Duty Modified Sine Wave Inverter – 3000 Watt / 12V

  • Provides power to run multiple devices simultaneously.
  • Excellent choice for most large power requirements.
  • Power: 3000 Watts; four outputs:
  • Input: 12 volts
  • Dimensions: 11.4″ x 10.0″ x 4.1″


  • It does its intended job very well
  • Best for major surgery
  • Can use multiple devices at once


  • Some Signal Loss Notifications
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9. Go Power! GP-MS2812-PKG 2800 Watt Pure Sine Wave Magnum Energy Inverter

The inverters you use on boats would be great to use if they came with a remote control, and this is something that this inverter from Go Power! Offers. It has one of the best in quality, it has a Magnum inverter, remote control, fuse block and charger complete with a 125 amp battery. In fact, it has all the necessary protection mechanisms for such a device.

It is one of the most expensive out there and the price is almost four times higher than inverters on the current market.

With a Go Power! The FBL-400 slow-acting class T reversing fuse and smooth and seamless switching from one mode to another, you can be assured of the best in operation of this unit. Your remote also takes things to the next level, allowing you to do other things while controlling or changing the inverter’s modes.

Go Power! GP-MS2812-PKG 2800 Watt Pure Sine Wave Magnum Energy Inverter

Pure sine wave power source for use in any electronic device or apparatus; Ideal for any sensitive electronic device such as televisions, computers, cordless tools and more
Integrated battery charger and transfer switch, to switch seamlessly between inverter power and shore power/generator power
The easiest inverter charger installation on the market and includes a 3-year warranty
Includes a Magnum ME-RC50 remote control; Magnum inverter / charger / remote control / fuse block pack with 125 amp battery charger, 50 amp transfer switch, ME-RC50 remote control and 400 amp fuse block
Includes a Go Power! FBL-400 Slow Acting Class T Reversing Fuse to Protect Your Wiring and Inverter.


  • It comes with a three-year warranty.
  • Specially made for use on boats.
  • It comes with all convenience mechanisms such as remote control and transfer switch.


  • No cons to the product, but it is at the higher end of the price scale
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10. WZRELB DC to AC Converter Off Grid Pure Sine Wave Power Inverter Generator

For power backups, this is a great option to buy. It also comes with a PCB thickness of 2.00mm which allows the current to float strongly in the circuit and thus the capacity will increase. It also comes with a power outlet that is strong and stable, something you really need for this.

Despite its advanced features, this is still one of the cheapest you can get on the market today, making it worth buying.

It is intended as a 2500 W power converter for pure sine wave DC, and is capable of handling twice the peak voltages. The mosfets in the inverter are strong and also have a high quality inductance that can only be produced with real copper, which this inverter is made from.

WZRELB DC to AC Converter Off Grid Pure Sine Wave Power Inverter Generator (2500w 12v 120v)

  • 2500W continuous 5000W peak true pure sine wave solar inverter, as good as the grid, power backup for home power supply.
  • Transfer 12VDC to 120VAC, 60Hz Frequency, Dual US Outlets Smart Temperature Control Cooling Fan. Ground connection for printed circuit board and output. Digital LED display.
  • High quality real copper inductance, filter waveform, guarantee real pure sine wave AC output, protect your equipment. All major imported mosfets with strong conductivity.
  • The thickness of the circuit board is 2.00mm, it allows the stronger current to drive in the circuit and increase the load capacity. High-frequency transformer to transfer DC to AC, provide stable and full AC output;
  • Free and clean energy used as marine inverter, vehicle inverter and industrial inverter, etc. Compact and portable for camping.


  • Made with the highest quality materials.
  • Thick PCB for better load capacity
  • Designed to be suitable for marine purposes


  • Only 2 plugs, no USB charging port
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