The 7 Best Power Inverters to Buy in 2018

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In basic terms, a power inverter is a piece of equipment that can covert a low voltage Direct Current, better known as DC, to standard Alternating Current (AC) power. This conversion of power allows power inverters to operate electrical equipment by plugging directly into a car, truck or boat battery often through a cigarette lighter receptacle or 12V adapter. Power inverters are often lifesavers when it comes to keeping the energy flowing during emergencies, so you can keep using a phone, medical equipment or even a laptop. Here are our choices for the best power inverters to buy today.

Our Top Picks

Best Overall: KRIEGER 1100 Watt

Billed as the world's smallest 1100W power inverter, the Krieger is more than powerful enough to handle small appliances and electronics. Packed away in a heavy-duty aluminum casing that's durable enough to last for years, the Krieger provides all of its relevant info on an LCD display, including output wattage, input voltage and battery level. It's ideal for keeping power tools charged up or powering televisions, gaming consoles or small appliances such as a microwave (it features 2200 watts of peak power). Plugging any of those appliances into the KRIEGER is easy, thanks to the two standard AC 12V outlets on either of the dual USB charging ports that push out 2.1A, making it equally suitable for charging smartphones or tablets. It's backed by KRIEGER's three-year warranty.

Best Budget: BESTEK 300 Watt

BESTEK is one of the strongest and most well-known names in the power inverter space and their 300W product is a standout choice for buyers looking at compact choices (it's about the length of a smartphone). The BESTEK includes two 110V AC outlets for charging electronics like a laptop and has dual USB charging ports for charging smartphones or tablets. The included two-foot cigarette adapter plug combines with the BESTEK's small footprint to fit into nearly any type of vehicle, making it a great choice to pack while camping or on vacation. A built-in 40-amp fuse and the integrated cooling fan helps protect both a car and plugged in devices from overheating, overloading or overcharging. The strong metal housing ensures the BESTEK can handle a few drops and bumps.

Best Splurge: Energizer 3000 Watt

The Energizer 3000-watt power inverter adds a peak power rating of 6000 watts, which means it has more than enough power output to handle heavy-duty electronics. Whether it is for use with microwaves, power tools, home appliances or gaming consoles, the Energizer is a is designed to keep things running smoothly and quietly, thanks to the ultra-silent thermal fan.

The Energizer adds two standard AC outlets for plugging in various electronics and two USB charging ports for connecting smartphones or tablets. An available remote allows users to power on and off the Energizer at a short distance away from the unit. Tracking power output is incredibly easy with the LCD display that alerts users to the input voltage, output wattage and battery level to ensure there is no danger of overheating.

Best for RV: AMPEAK 2000W

The AMPEAK 2000-watt power inverter offers a maximum power output of 4000 surge watts. The available three AC outlets and single 2.1A USB outlet will work with everything from cell phones, digital cameras, electrical fans, freezers, floodlights, microwaves and other electronics you might find in an RV.

To protect against damage for any of your devices, the AMPEAK adds some welcome protections, including three cooling fans and an audible alarm to quickly alert you to overloads, over voltage or overheating. Another major benefit to the AMPEAK 2000W is the opportunity to connect to a 12V battery system, allowing the AMPEAK to assist with providing additional power for your needs during events such as a hurricane or storm where power outages can be frequent.

 

Best for Trucks: POTEK 1500W

With dual AC outlets and dual USB charging ports right on the front of the POTEK 1500W power inverter, this choice is a great option for truck drivers who want the extra power. For drivers making frequent long hauls, protection against overheating or short-circuiting is critical and the POTEK delivers with a built-in cooling fan that starts working once the POTEK hardware hits 104-degrees Fahrenheit.

Add in six internal fuses for making it even safer while on the road and the POTEK quickly rises to the top of smart buys for drivers who want extra power support for their devices. More than ready to handle a laptop, power tools or other electronics, the POTEK adds 3000 watts of peak power to instantly kick on devices or electronics without creating a surge in current.

Best for Cars: POTEK 500W

You can never go wrong by having too much power on you while driving across town or the country. The POTEK 500W is an ideal option for buyers looking at power inverters that are properly sized for a car and keep the energy flowing to a slew of electronics and hand-held devices. The POTEK 500W and its dual 110V AC outlets and two USB ports will have no problem keeping a laptop, Kindle, iPad or multiple smartphones going with power to spare. Keeping all of these charges going simultaneously without causing any damage is the work of the built-in cooling fan that ensures no devices or the POTEK itself will get overheated or overloaded. Measuring 7.1 x 4.1 x 2.2 inches in size, the POTEK fits in most glove compartments or center consoles, which makes it a must-have for anyone who spends a good chunk of time commuting in a car.

Best for Boats: Power TechON 3000W

Power TechOn

Courtesy of Amazon 

When it comes to keeping things powered up while on a boat, few electronics do as good a job as the Power TechON 3000 Pure Sine Wave power inverter. Equipped with dual AC inputs, one USB port and a hardware terminal, the Power TechON can reach a maximum of 6000 watts in surge power. When traveling on the ocean, safety and security are critical, so you can cruise easily knowing that it's equipped with a multitude of different protection features to prevent overvoltage or overloaded devices. Capable of converting DC to AC power, the Power TechON comes with both black and red starter cables, as well as a wired remote that can reach up to 15 feet away. Once plugged in, the inverter will have no problem producing power to a slew of devices, including computers, laptops, smartphones and other handheld electronics whether you're on the water or docked.