Best 300 Watt Power Inverter Reviews

Which devices can be powered by a 300 watt inverter?

It is important to get the right size for your device; If you do this incorrectly, you can damage the inverter or the device.

Inverters are measured in watts and a 300 watt inverter is best for automotive applications and for small home appliances or devices in your car such as your phone.

Today we are going to take a look at some of the best 300 watt inverters on the market today.

Where a 300 Watt Power Inverter can be used

Since batteries are the normal source of DC power, wherever you find batteries you need an inverter. The most common use is probably in the car; If you’re looking for a way to use a power outlet in your vehicle, you need an inverter.

You may also need one if you use a battery generator at home. In addition to the maximum power that can be used with the inverter, other important factors to consider are the inverter outputs. Most inverters use standard plugs, perfect for small appliances and appliances.

Some examples of devices that can be turned off with a 300 watt inverter include cell phones, CD players, VCRs, satellite dishes, printers, laptops, MP3 players, a PS2/Xbox and a 25” television.

These devices are rated from just 24 watts to 175 watts. If you spend a lot of time in vehicles or want to use lights in emergency situations, these inverters are best for you. If you are using larger appliances, you may need a higher power inverter.

Reviews of our favorite 300 Watt Power Inverters

1. BESTEK 300 Watt Power Inverter

This inverter is designed for in-car use, using a car battery as the DC source. The device can power devices that draw up to 110 volts AC. BESTEK is known as America’s leading brand of inverters and this device can also handle power surges up to 700 watts.

This 300 Watt Cutlery has a great price as it is a well known and trusted brand.

This inverter comes with 2 power outlets and 2 USB ports for fast, multi-purpose charging. It is compact and extremely light, making it perfect for vacations and business trips where there is no stable power source. It comes with device protections against overheating, overload, overload and other electrical problems.

BESTEK 300W Power Inverter DC 12V to 110V AC Car Inverter with 4.2A Dual USB Car Adapter

  • BESTEK advantage: America’s leading power inverter brand. Provides 300 watts of continuous DC-to-AC and 700 watts of instant power, with 2 power outlets and 2 USB ports
  • Fast Charging: Two 110V AC outputs for charging larger devices such as laptops and tablets, 2 USB charging ports (0-2.4A) for powering USB-compatible devices, a good choice as necessary car accessories
  • Ultra-compact and lightweight: iPhone-sized design, ideal for use during vacations, business trips and camping. Thanks to the 24-inch cigarette lighter plug, the inverter can be connected to almost any vehicle
  • Multiple Protection: Built-in 40 amp fuse to protect your device. Safe charging design provides protection against overheating, low and high voltage charging, short circuit
  • The durable metal housing provides advanced protection against drops and impacts The intelligent cooling fan system makes the car’s inverter very quiet during operation and the fan runs faster when the unit heats up or the output power exceeds 70 W. 18-month warranty.

PROS

  • light
  • Quality mark
  • Overvoltage protection

CONS

  • No LED display to check status
  • No smart cooling fan
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2. Quesvow Power Inverter

This one from Quesvow is arguably one of the strongest devices out there and comes equipped with 2 outlets and 2 USB drives, making it the perfect device for charging. It is also designed for in-car use as it comes with a cigarette lighter adapter. It is secured with all necessary security mechanisms and is compact and lightweight.

Within the price range you would expect a 300 watt inverter.

Thanks to the smart combination function of the device, you can easily charge devices such as iPads and other devices. It comes with a built-in fuse to protect against overheating and has a 33-inch long cord for convenience. Even people in the backseat of the car can power their devices with this inverter. The device is also excellently priced and offers a good guarantee on a cheap product.

300W Car Power Inverter DC 12V to 110V AC Converter 4.8A Dual USB Charging Ports Car Charger Adapter (Red)

  • 【300W Premium Power Inverter】 Provides 300 watts of continuous DC to AC and 600 watts of peak power. Ideal for charging string lights, laptop, breast pump, CPAP machine, nebulizer, game console, kindle, TV, DVD players, lights, iPad and other electronic devices.
  • 【Fast Charging】 This car inverter has dual 110V AC outputs and 2 USB ports. 4.8A / dual USB ports can automatically detect your devices to provide optimal charging speed, ideal for your Kindles, iPhones, iPads, tablets, MP3 players, cameras and other mobile devices
  • 【Mufti Protection】 Built-in fuse to protect your device, safe charging design provides protection against overheating, under and over voltage charging, short circuit, overload and overload
  • 【EASIER】 – Plug directly into the cigarette lighter. The length of the cable is 33 inches, to satisfy the people who sit comfortably in the back seat, with fixing tape, which is easier to maintain.
  • 【Improved Cooling Effect】Built-in ultra-quiet automatic temperature control cooling fan helps reduce heat and prevent shortages. The durable metal housing offers advanced protection against drops and bumps.

PROS

  • Compact and lightweight
  • Long cord
  • 24 months warranty

CONS

  • No temperature display
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3. VOLTWORKS 300 Watt Power Inverter

This 300-watt inverter from Voltworks works well as a reasonably priced two-output inverter. It comes standard with a 4.8A plug that easily plugs into the car adapter and is designed for 110 volt AC appliances.

This great little inverter is very affordable considering its design and built-in features.

The Voltworks 300 watt inverter is well priced and has all the standard features you would expect from a typical 300 watt inverter. It provides an LED load measurement to tell you how much power the inverter is consuming and comes with the normal overheating safety features. The maximum load is 300 watts continuous, with a maximum load of 600 watts. In general, most users find that Voltworks inverters can withstand repeated use.

Power Inverter 300W Car Inverter DC 12V to 110V AC Converter with LED Display & 2×2.4A Dual USB Car Adapter Charger by VOLTWORKS

  • 【300 WATT CAR POWER INVERTER】 Provides 300W continuous output, modified sine wave inverter, converts 12 volts DC to 110~120 volts AC with 2 AC outputs and 2 USB fast charging ports of 2.4 A and 18 months warranty. The product liability insurance is covered by the insurance company AIG.
  • 【SUPER SILENT AND INTELLIGENT FAN】The smart cooling fan only works when the temperature is above 104℉ or the loads are above 100 watts, the fan will not work once we start the inverter. And the noise of the cooling fan is less than 45 dB, you can hardly hear it.
  • 【Powerful Charging】 Dual 110V-120V AC outputs to power small devices such as laptops and tablets or any other device under 300 watts, 2 USB smart ports (0-2.4A) for charging USB devices. A good choice for camping, outdoor activities or road trips by car.
  • 【ADVANCED PROTECTION】 Designed with advanced isolated input and output technology. Fully protect your devices from over voltage, under voltage, overload, short circuit, overheating protection. Turn on the ON/OFF switch near the fan, then the inverter will output AC.
  • 【WHAT YOU GET】 A 300W inverter, user manual, 18 months warranty, friendly and patient after-sales service.

PROS

  • Good price
  • LED screen
  • 18 months warranty

CONS

  • Some reviews doubted the durability of the inverter.
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4. Geloo 300 Watt Power Inverter

Another great device that you can use especially for any adventure in your car is the Geloo 300 Watt Power Inverter. With two AC outputs and two USB ports, you’ll find that the inverter is more than adequate to handle multiple devices, although you should of course be careful not to load more than 300 Watts continuously.

A less well-known brand, but still a good price that you can expect from this power class.

The Geloo 300 Watt Power Inverter gets high marks for a good price and great durability. It lacks some of the features found in similar products, such as an LED display, but it makes up for it with consistently favorable reviews.

GELOO 300W Power Inverter, DC 12V to 110V AC Car Inverter with 4.8A Dual USB Charging Ports Car Charger Adapter

  • 【300W Premium Power Inverter】 Provides 300 watts of continuous DC to AC and 600 watts of instantaneous power. Ideal for charging string lights, laptop, breast pump, CPAP machine, nebulizer, game console, kindle, TV, DVD players, lights, iPad and other electronic devices.
  • 【Quick Charge】 This car inverter has two 110V AC outputs and 2 USB ports. 4.8A / dual USB ports can automatically detect your devices to provide optimal charging speed, ideal for your Kindles, iPhones, iPads, tablets, MP3 players, cameras and other mobile devices
  • 【Mufti Protection】 Built-in fuse to protect your device, safe charging design provides protection against overheating, low and high voltage charging, short circuit, overload and overload
  • 【Ultra Compact】 The size of an iPhone makes the car inverter easy to store. The 31-inch cigarette lighter plug fits into any DC power outlet of the car and meets the needs of people who sit in the back seat
  • 【Improved Cooling Effect】Built-in very quiet temperature control, automatic cooling fan helps reduce heat and prevent shortages. The durable metal housing offers advanced protection against drops and bumps.

PROS

  • Good durability
  • Choice of colours: red or blue

CONS

  • No display of power consumption.
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5. Poweradd 300 Watt Car Power Inverter

For those who love to travel and still love to use their devices, one of the best devices to use is this one from Poweradd. It is compact and lightweight, yet extremely powerful. It uses 12 volts and is used for 110V AC devices. The device works optimally for various devices that you often take with you on long trips. It also has a solid and sturdy metal housing that protects it even on rough roads and from constant vibrations from a car.

A good price for a decent 300 watt inverter.

High ratings for durability and quiet operation. The brand is well reviewed and customer service seems to be fast and responsive.

PROS

  • Dual USB ports
  • Compact size
  • Cooling system
  • Protection technology

CONS

  • no screen
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6. Foval 300 Watt Power Inverter

This 300 watt inverter from Foval is equipped with all standard features and is ideal for powering various small electronic devices via the car battery. It comes with two USB ports and 2 power outlets. The compact design is fully certified for safety.

Well-known brand, typical price, we think it’s a good deal!

In addition to complete device safety, the Foval inverter also comes with a smart cooling fan. The fan spins faster when the inverter works harder, but remains silent during operation. The inverter can be used in non-automotive applications such as emergency, outdoor, vacation and the like. In an unusual move for models at this price point, the Foval inverter also comes with four replacement fuses for any situation where you accidentally overload the unit.

Foval Power Inverter 300W DC 12V to 110V AC Converter with 4.8A Dual USB Car Charger

  • Premium 300 watt car inverter with 2 USB ports and 2 AC outputs. Dual USB ports can charge most phones and tablets simultaneously (4.8A maximum total output), while two grounded outlets (300-350W) are ideal for charging laptops, breast pumps, nebulizers, game consoles, Kindle, TV, DVD players, lighting, iPad and other electronic devices
  • FCC authentication Built-in 40 amp fused safe with full protection: overheating, low and high voltage charge, short circuit, overload and overload (applies to 12V but not 24V cars)
  • Ultra-compact and lightweight – iPhone-sized design for space-saving and easy storage, 30-inch cigarette lighter cord allows the inverter to sit in the back seat
  • The durable metal housing offers advanced protection against drops and bumps. Built-in smart cooling fan makes it quiet when running, helps reduce heat and prevents shortages
  • What you get: Foval 300W car power inverter, 30″ longer cigarette lighter cord, 4 replacement fuses, user manual, 18 months warranty and 100% customer service

PROS

  • Long cable (30 inches)
  • 2 plugs and 2 USB cables
  • 18 months warranty

CONS

  • No LED display
  • Some complaints about a noisy fan.
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7. Go Power! GP-SW300-12

Unlike all the other inverters on this list so far, this inverter from Go Power is a pure sine wave inverter. Simply put, a pure sine wave inverter provides a constant and uniform power flow comparable to that of a utility company. Most inverters deliver power in “blocks” – generally it’s a constant flow of power, but if you break it down you’ll find it’s actually a bit choppy. For most devices, this doesn’t matter much. Almost any device you would charge in a car will work well with a custom sine wave inverter, like the previous entries on the list.

But if you’re looking for an inverter that’s ideal for home use, you’ve got this one. The pure sine wave provides a smooth power supply for sensitive electronic devices such as televisions or refrigerators.

On the pricier side, but you get a pure sine wave inverter you can rely on.

The price of this inverter is higher than the others on the list so far, due to its pure sine wave output. But for that feature, the price is reasonable and the reviews are favorable. Even the yellow color is unusual and a nice change from the more typical black and red color schemes.

Go Power! GP-SW300-12 300-Watt Pure Sine Wave Inverter

  • 300 Watt Continuous Pure Sine Wave Inverter 12 Volt Input
  • 450 watts peak
  • 2 GFCI protected outlets to plug into
  • Overvoltage, Undervoltage and Overload Protections
  • 2 year warranty on new units (refurbished units come with a 30 day warranty)

PROS

  • Yellow!
  • Pure sine wave output
  • Household use

CONS

  • 450 watts maximum surge protection
  • No LED display
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8. Leadchuang 300 Watt Power Inverter

Another inverter worth buying is this one from Leadchuang. It has an amp rating of 8.4A and comes with four USB ports and a 110V AC outlet, making it perfect for charging mobile devices.

Standard price for this power range.

This Leadchuang entry is one of the cheapest on our list. It does that honor in part by reducing the number of outlets it offers from two, which is the standard for a 300-watt inverter, to one. To compensate for the single output, it offers four USB ports, clearly designed with a mobile generation in mind.

Leadchuang 300 Watt Power Inverter 12V to 110V Converter for Car USB Charger Car Power Inverter Power Inverter 300 Watt for Car Cigarette Lighter

  • 300 Watt Heavy Duty Power Inverter – Provides 300 Watt continuous DC to AC power. Ideal for charging your laptop, phone, tablets, electronic breast pump, DVD player, game machine, TV, air mattress, LED lights, camera batteries, kindle, etc.
  • Multiple protection: An automatic cooling fan is designed to control the temperature and prevent overheating and shortage. Built-in fuses are used to protect your devices from overheating, low and high voltage charging, short circuit and overload.
  • Fast Charging: 4 USB charging ports (0-2.4A) and a 110V AC outlet can quickly charge your phones, Kindle, laptop and other electronic devices.
  • Ultra-compact and lightweight – About the size of an iPhone, this 300W inverter offers the convenience of placing it anywhere you want. An 18 inch universal design cigarette lighter fits well in almost any type of car.
  • Warranty and After Sales: This inverter has a 12 month warranty. Plus, a friendly customer service team is always ready to help you when you need it.

PROS

  • small size
  • 4 USB ports

CONS

  • Only one way out
  • Some complaints about the quality of the components.
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9. AIMS Power PWRI30012S Pure Sine Power Inverter

If you are using voltage sensitive devices that require a pure sine wave input, this inverter is perfect for you. It’s one of the most advanced out there, and you can be sure of smooth, smooth operation with this 300-watt inverter.

Very affordable pure sine wave option, from a well-known brand.

Another Pure Sine Wave Offer – At a much higher price than the normal type of car adapter converter, this one from AIMS gives you an even power supply for the most sensitive devices. The build quality gets good reviews and the inverter still weighs less than three pounds.

AIMS 300 Watt, 600 Watt Peak, Pure Sine DC to AC Power Inverter, USB Port, Cables Included – Non UL Listed

  • POWERFUL: 300W maximum continuous power, 600W peak, pure and clean sine wave power, soft start technology, compact design, light weight
  • PROTECTIONS: overload, over temperature, high voltage, low voltage, short circuit, with internal fuses, low and high voltage alarm, cooling fan and insulated neutral.
  • FEATURES: Works with small electronics, appliances and more. Includes USB port, cables and LED indicators. Produces up to 2.5 amps.
  • TRUST GOALS: Buy with confidence. Active in the investment world for over 20 years. All technical support, warranty and sales are supported in Nevada.
  • APPLICATIONS: Ideal for powering cell phones, computers, CPAP, small televisions. Use high quality copper cables in your system.

PROS

  • Thermal Fan
  • Good build quality
  • Pure sine wave output

CONS

  • no screen
  • Connector ends stick out and can break
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