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Best Generator under 400

I found that Yamaha EF2000iS Portable Generators offer an array of features, top level efficiency, and fantastic value, placing it in the top amongst portable generators. There are more than just a few things that set this particular generator apart from the rest. This particular model is built to last, ideal for occasional or frequent usage in situations like camping, or in a trailer park. The Yamaha portable generator is also amazingly quiet, so quiet in fact; you may even forget it's there. You won't have to worry about keeping your neighbors up at night either.

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Here is a list of the Best Generator under 400

Top Best Generator under 400


Yamaha EF1000is Portable Generator

Rating: 4.4 / 5.0

This is considered to be one of the most popular solutions for consumers who are in search of a power generator which is lightweight and can be brought with you wherever you may go. This boasts a noise block function, which guarantees that you won't be annoying with any loud sounds that usually emanate from the larger power supply devices to be found being sold these days. Other features include:

  • Smart Throttle - provides good fuel efficiency and noise reduction. This feature automatically adjusts the engine speed to match the power load required for specific situations.
  • Inverter system - ensures that voltage stability is within 1% and that the frequency stability is ± 0.1 HZ. This offers you only the cleanest and highest quality power.

Yamaha EF1000is Portable Generator Video Review


Yamaha EF2000iS Portable Generator

Rating: 4.3 / 5.0

If you're looking for a portable generator which proves to be eco-friendly, this is one to beat. Much like its predecessor, the EF2000is is one of the quietest generators to come out of the market. It is outfitted with the same noise block design that is patented to Yamaha itself, ensuring as little sound as possible when utilizing the generator. Other features include:

  • Complete portability - weighing in at only 44 pounds, you can tag it along with you wherever you go. It provides the maximum supply of power in a tiny package.
  • Muffler design - you can engage in conversations with other people, and you won't even realize that the generator is running at full capacity, thanks to the noise reduction system.
  • Increased power efficiency - if you want to get more power without any noise, you can simply connect it to another generator, increase its load to 30 amps max.

Yamaha EF2000iS Portable Generator Video Review


DuroMax XP4400E Portable Generator

Rating: 4.2 / 5.0

The first style I would like to talk about is also the most popular version of portable generator - the DuroPower. These things cost between $200 to $2,700 and range in power from 2 kW to 17.5 kW; the latter being nearly enough to provide your whole home's power needs. An added advantage of the conventional use of home style generator is their affordability. If you require general home use, holiday home use or emergency use go with the overall home use portable generator style. Included in this are brands like Generac and Eastern Tools & Equipment.

DuroMax XP4400E Portable Generator Video Review

Briggs & Stratton

Briggs and Stratton 30676 Portable Generator

Rating: 3.4 / 5.0

The second style is the most technologically advanced style of portable generator - the Briggs & Stratton. These use microprocessor controlled electronics to guarantee the electricity is utility quality. Ideal for your sensitive electronics. An inverter generator, you will observe, is enclosed inside a casing and are much more compact than the conventional style home use mentioned previously. However, they often are more expensive (range: $309 - $3,700) for the power you get and the largest one available can only supply 6.3 kW. An inverter is the best for camping, tailgating, and weekend events because they are so small, quiet and fuel efficient. You turn one of these on and forget about it. Pretty cool bit of technology.


A single tank of gas will last you over 10 hours running in economy mode, which is pretty outstanding for a portable generator. The average for other generators on the market tends to be around eight hours, which shows how fuel efficient the EF2000iS is.

The Yamaha is extremely user-friendly due to the outlay of the controls being centralized and start up is a breeze due to reduced compression. The Yamaha EF2000iS also comes with the ability to charge batteries as well as the connection cables. You can easily charge your car, boat, or RV battery.

Depending on where you buy this machine, it usually comes with a two-year warranty. The only real downside to the EF2000iS is that it experiences a slight loss of power at high altitudes. However, this is something that you get with any portable generator.

For safety reasons, there is a low oil indicator light on the control panel, and the unit will turn off to prevent damage when the oil drops below a certain level. Also weighing in at around 44 pounds in weight it is extremely portable, making it easier than most to transfer from one place to another. The Yamaha is also built with the environment in mind and EPA rated.

When you need to use this unit in the winter, it's easy to start because it has an auto-warm-up feature. With an easy pull cord for starting, everything about this machine is smooth and efficient. The twin-tech technology also means you can use two machines hooked up together for even more power if you need it.

Maximum surge wattage is 2,000 watts and rated output is 1,600 watts. The unit is also very stable, with rubber feet to prevent too much movement. The engine has a four stroke single cylinder and is forced air cooled. The Yamaha is a little over 17 inches tall with an overall length of a touch over 19 inches which are reasonably compact for a machine this powerful.

You'll always get clean, safe energy with the EF2000iS because it uses an inverter-style alternator. This makes it a more reliable source of power which can be used for electronics and other high-tech equipment. It also has what is known as a smart throttle which will automatically vary the engine's speed depending on the load being used.

Customer review

Anyone who's looking for an outstanding value portable generator, I recommend the DuroMax XP4400E is an excellent choice. It can deliver a maximum power of 4,400w that makes it ideal for use home backup, job site, and recreational activities. Due to its portability, it doesn't stop you from any adventure, just bring on the excitement and take it anywhere you want it.


The portable generators are top notch machines and one of the best to buy for a variety of different uses. Yamaha has a fantastic reputation for a variety of different products and their adherence to quality shows through with the EF2000iS portable generator.


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