400 Watt Power Inverter Reviews

In today's connected world, USB ports may not provide enough power for more extensive accessories, that's where a power inverter comes in handy. A power inverter doesn't come only with USB ports for charging your cellphones.

But AC outlets to power gadgets like laptops, microwaves, and game console, as well. If you love camping, this unit will play a vital role in helping you to stay connected. A 400 watt power inverter is more excellent for all occasions.

While choosing your best inverter, you may want to check some key features to enhance maximum performance. Things like the number of outlets, durability, weight, and size, wattage, and construction are things to go by. 

Still, you may have modified sine wave or pure sine wave inverter. You need to know which type is compatible with your appliances. In this article, we'll analyze different models and why they are the best.

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400 Watts Power Inverters Reviews for 2021

1. VOLTCUBE 400W Power Inverter

Power Inverter

VOLTCUBE 400W is a multi-purpose and leading power inverter in terms of quality. With dual ports and 2 AC outlets, this device is the best when camping. It provides ultimate power to electronics like laptops, refrigerators, digital cameras, and mattresses. The USB ports are essential for all compatible devices, including tablets and smartphones. This brings more enjoyment to your children on a long trip.

Moreover, the model comes with a stylish and durable design. A fashionable aluminum honeycomb structure offers durability and looks nice too. Excellent heat dissipation is what it provides to the maximum.

Upon that, it is safe for batteries and electronics as it packed with a replaceable fuse and cooling fan to prevent overheating and other short-circuiting. Indeed, it's a worthwhile purchase.


For your long road and business trip, you need this inverter. It powers your appliances and entertainment devices to enhance more enjoyment. Also, its continuous 400W power makes it suitable for outdoors.

Highlighted Features

  • Stylish design and durable
  • High-quality device
  • Dual USB ports
  • More powerful inverter
  • Ideal for USB compatible devices

2. Bravo View INV-400U (400-W) Power Inverter

Power Inverter

With 200W continuous power and 400W peak power, Bravo View has gained a reputation in the automobile industry. Very quiet, light, compact, and works great. That means that the unit is space-saving and comfortable to carry around.

Dual 110V AC outlets powers household appliances when plugged in while 2.1amp USB port delivers charge to smartphones and numerous USB-powered devices.The cigarette lighter cable provides power directly from your car 12V power socket. 

Most importantly, the total protection is enhanced by low voltage alarm, over-voltage shutdown, thermal shutdown, and a replaceable 20A fuse. With this device, your trip will look fantastic and pleasurable.


From something light, quiet and great, Bravo View comes first. Just like other premium power inverters, this model comes handy. It ensures total protection to all appliances attached to it.

Highlighted Features

  • Light and quiet
  • Dual AC outlets to power multiple devices
  • Total protection
  • A 2.1amp USB port

3. Wagan EL2610 Gray 400W

Power Inverter

Another power inverter that quickly gets in our list is the Wagan EL2610. The item is perfect for charging electronics on the go for persons with mobile lifestyles.

You only need to plug it into the DC socket or attach it directly to your car battery using the alligator clamps. Compared to old inverters, this unit is a modified sine wave that will operate all your appliances with a more relaxed, quieter, and cleaner energy.

Also, it's equipped with safety features, including overheat, overload, and most significantly low battery protection. Plus, the pure sine tech facilitates its efficiency.

Thus you can recharge faster, reduce energy costs, yet extend the life of household appliances. I couldn't get my head around why you should not include this inverter in your cart.


With little bells and whistles, Wagan EL2610 is top-notch quality. A fast-charging device beyond any user expectations. Not to forget, it lightweight makes it ultra-portable when camping or in other outdoor activities.

Highlighted Features

  • Efficiency, fast charging
  • Safety and total protection
  • Lightweight
  • Best for outdoors and long road trips
  • Small size

4. Cobra CPI490 400W Power Inverter

Power Inverter

This compact power inverter features 5-levels of ultimate protection against failures like thermal shutdown, reverse polarity protection, over-voltage shutdown as well as low voltage shutdown.

With dual AC outlets and USB ports, Cobra CPI490 is enough to charge up to two appliances simultaneously. Apart from being affordable, this unit is excellent for those with a tight budget. 

Its versatility is another feature that brings common sense. Notably, it features two power sources. With that, you can connect directly to your car battery or through the cigarette lighter to get the job done.

The Cobra pentagon protection makes it a champion against failures. It feels safe to use and confident to power your devices.

Highlighted Features

  • Versatile device
  • Cobra pentagon protection
  • Compact design
  • Two power source
  • Safe to use


It comes to a point when you need a full connection when meandering around long ways of your state. This unit comes at the right time. With its versatility, it brings happiness all around your vacation. You don't have to hassle for another power inverter.

5. BESTEK 400W Car Power Inverter

Power Inverter

Another reputable power inverter from BESTEK is the big name BESTEK 400W. It gives continuous, direct client to alternating client, then a remarkable 1000W of peak power.

It brings charging to your own hands because of dual 100V outlets that provide the massive potential for your digital camera, fan TV, tablets, GPS, game console, and Blu-Ray player.

4 USB ports make it possible to multiple and USB compatible devices at a go. For safety and optimum maintenance, the unit is built-in replaceable fuses.

Anything like short-circuiting is brought down to your stance. It an advanced inverter for the world's traveling as you tailor your devices to maximum charge using it.

Things to Consider When Choosing a 400 Watt power Inverter

Safety features

For small devices, such car power inverters require lots of safety and built-in protections. Low battery shutoffs, fuses, and high heat protection are some of the essential things that any model should have before purchase.

Significantly, it's more paramount to haveSince most power inverters over-current protection and overload protection on any unit that you own. Be keen to check out such things before making a final buying decision.

Remote control

Some units can be controlled using a remote. This makes it enhances ease of use, especially when you've hooked up your inverter to the car battery.

Since most power inverters lack automatic shutoff switch, a remote control comes in handy and gives you a more straightforward way to shut off the power even from a distance.


Having the power inverter that is made of durable materials like aluminum alloy is a good investment. For sure, they'll be working well, even in a harsh environment.

Thus they can get hot quickly when in operation. For such reasons, the unit you choose should last longer. Also, it should be light in weight for easy transportation and storage.


In every power inverter, the wattage factor will determine the amount of power that a unit should generate to your electronics. The more the wattage, the stronger the group, and the longer the time a converter will power your multiple devices.

For example, a 400-watt inverter is capable of powering large appliances like microwaves, coffee makers, and small fridges.

Number of outlets

Before shopping for a power inverter, know your intended use. If you have more electronic devices to charge, then you need a unit with many AC outlets and USB ports. Things like laptops, camera batteries, and tablets that are a must when camping.

And they need to stay connected to kill boredom as they contribute towards entertainment. Also, you need a coffee maker to prepare morning coffee, among other things.

Frequently Asked Questions (Buyer's Guide)

This section provides you with comprehensive answers to any question you could be having regarding 400W power inverter.

Q1. Should I Idle My Car While Using the Inverter Off My Car Battery?

We all have got experiences in our daily lives when it comes to dead car batteries. Simply, this is because cells can't store much electricity.

Batteries are meant to offer the initial power boost needed to boot or start an engine. When the engine re-ignites, the car alternator then keeps on re-supplying more power to the battery as the vehicle operates.

Q2. How long can my car battery run my 400-watt inverter?

400-watt battery is stronger. Approximately it can run for 2 hours. For instance, if the car battery has got a 90hrs amp rating, then it is capable of running the 400-watt converter for around 2 hours.

The longevity of a battery will depend on the amp hour rating. Meaning, the higher the amp/hr rating of the car battery, the longer your battery will last.

Q3. What can a 400-watt inverter run?

Car power inverters come with very many advantages. When you own one, it's more accessible to power some electronics such as laptops, tablets, small refrigerators, coffee makers, power tools, DVD players, game console, digital cameras, and electric stoves, among others.

Final Verdict

To sum up, a long world journey is tailored to one of the most excellent power inverters. All our picks are second to none, but the choice depends on the intended use. 

We choose BESTEK 400w Power Inverter because of its versatility, total protection, construction, and its long lifespan. A compact design gives it another picture that makes it portable. While others are affordable, this unit is more affordable.

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