Whether theres a power outage locally or youre driving to a remote location, sometimes we just need portable power. While you could lug around one of the best portable power stations to get your remote electricity fix, your best bet may be one of the best portable power inverters instead. These devices draw energy directly from your cars battery, giving you accessibility to power without needing to carry around a very heavy battery, charge it, or any of the other hassles associated with portable energy. If you have a car, youre ready to use a portable power inverter.
The following portable power inverters span a large range of models, port types, and wattages. Check them out here based on a brief recommendation or continue on for a more detailed analysis.
Buy the if you want the best power inverter for most people. Buy the for a solid upgrade. Buy the power inverter for a small but reliable pick. Buy the power inverter for your high-powered needs. Buy the if you want something to plug into the inside of your car during travel.
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Pros | Cons |
Perfect price point | No USB-C |
Temperature, voltage, and short circuit monitoring | |
Highly versatile | |
ETL listed for safety |
We really like the versatility the Bestek 500W gives for its price point, including quality clamps for your battery alongside a cigarette-lighter plugin for the interior of your car. You wont want to use the cigarette lighter option all of the time if you own the Bestek, however. This is because it cannot draw as much power as the direct-to-battery option. Plus, if you want to use a cigarette-lighter only device, you can find much better options elsewhere on the list. Use the Bestek 500W if you want versatility.
Youll notice that the Bestek 500W has a power switch. This turns off the two outlet ports, but not the USB-A ones. The reasoning behind this is simple USB-A ports take little to no power. Plus, within the Besteks protections package, there are protections for your batterys power level. In other words, unless something goes seriously wrong, youre going to be able to get your car started after using the Bestek 500W. And, while were on the topic of safety, the Bestek 500W has an ETL listing for safety, meaning it has passed stringent third-party safety requirements applicable in the US for safety.
Key Specifications | |
Wattage | 500 |
Ports | 2 outlet, 2 USB-A |
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Pros | Cons |
Great power for price | No cigarette-lighter option |
Temperature, voltage, and short circuit monitoring | |
ETL listed for safety |
Key Specifications | |
Wattage | 1000W continuous, 2000W peak |
Ports | 2 outlet, 1 USB-A |
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Pros | Cons |
Automatic shut-off for low/high voltage situations | Included cables short, but you can sub in your own |
Slim size (2.2 inches tall) | |
Cigarette-lighter option | |
ETL listed for safety |
One thing we particularly like about this power inverter is its slim size, 8.3 x 5.2 x 2.2 inches. This means you can slide it under your seat or toss it in the glove box. Youll particularly like this if you intend to use the cigarette lighter connection during your travels, which is capable of delivering around 100W of power.
We do somewhat fear that youll end up using this cigarette lighter mode more than the battery attachment mode, as the included cables are somewhat on the short end of the size spectrum. If you want to use the Amazon Basics 750W to its fullest, grab a longer pair of battery attachment cables, as the included ones are of the detachable sort.
Key Specifications | |
Wattage | 750 |
Ports | 2 outlet, 1 USB-A |
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Pros | Cons |
Clear LCD status display | Expensive |
Up to 8000W peak power | |
3-foot power cables included | |
ETL / UL listed for safety |
To give you an idea of what you can do with 4000W, just look at the these air fryers. The Cuisinart Convection Toaster Over Air Fryer uses 1800W of power, meaning that you can use it, a TV, and plug in your phones to this inverter and turn out okay. At the end of the day, this best portable power inverter for those of you that need more than a charger for your electronics devices and, instead, want some intensity. It is, however, more expensive on the other items in this list.
Key Specifications | |
Wattage | 4000 continuous, 8000 peak |
Ports | 2 outlet, 2 USB-A |
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Pros | Cons |
Very compact | Can create tight spaces |
Built-in surge protection | Outlet wont power everything |
2-year warranty |
The main advantage and disadvantage of this power inverter, oddly enough, is its size. At 3.2 x 3.9 x 2.5 inches and weighing in at 0.3 pounds, you can throw the CyberPower 160W into just about any backpack, purse, or laptop case you can think of or even just leave it in your glovebox. At the same time, despite its ability to swivel at 150-degrees about its head, there is still the possibility of a somewhat tight fight around your gearshift. Consider the layout of your car and your needs before purchasing.
Key Specifications | |
Wattage | 100W continuous, 160W peak |
Ports | 1 outlet, 1 USB-A |
The preceding power inverters were largely chosen due to their ability to quickly be thrown in the car and carried until needed. Of course, other factors mattered too. As with all products covered by Digital Trends, technical specifications, our knowledge of typical pricing guidelines, and general consumer sentiment towards the product were considered. This being said, power inverters are more complex than they first appear, and many factors must be considered before selecting one.
Some highlights in our thinking process include coverage of the following points:
The best power inverters are not necessarily the ones with the highest wattage, but they do tend to run that way. In reality, the considerations of what makes for the optimum wattage in a power inverter is no simple task.
If yourwattage is too low for the task at hand, your devices may not run or your power inverter may simply break down and overheat. Its worth noting that power invertersare not perfectly efficient, so you should always aim for a wattage that will give you a buffer over what you really need.
As a result, most of the time, having a wattage that is too high is a good problem to have. That being said, the inconsistent efficiency of portable power inverters once again comes into question. If a device can draw more power, it very well might. It might sound silly, but the extra power allowance of a high-wattage power inverter can get you toact sloppy with your power conservation, draining battery faster. Many of the best portable power inverters will havelow voltage or low battery detection for automatic shut-off.
How much wattage should you get? Aim for a wattage that makes sense for your needs and then exceed it by at least 100W or so. Use the following wattages as guidelines:
For USB, a USB 3.0 device will use under 10W max, while certain types of USB-C can use up to 250W. Official power adapters for iPhones use up to 20W. The (one of the years best TVs) takes 444W. Expect TVs to take between 200 and 600W, depending on size, energy rating, and other factors. If youre paranoid about killing your car battery from using a portable power inverter or a power inverter malfunction, check out these portable jump starters to ensure your ability to get back on the road.
How do you connect a power inverter to your battery? For the best portable power inverters, there are a couple of standard ways. One is to connect the inverter directly to your battery, much in the same way that you connect jumper cables to it. If you mostly plan on using your power inverter while stopped and want to use something like a TV or monitor with your power inverter, this is the best way to connect to your power inverter. The reasoning is simple, the cars battery is able to produce quite a bit of power.
You will also find portable power inverters that can connect to thecigarette-lighter. This connection method is very convenient and can be used even while you are driving, but has a disadvantage of being limited by the amount of wattage your cigarette-lighter will supply, which is typically going to be less than 200W.
Many of the best portable power inverters have both direct battery connections and cigarette-lighter options.
This factor is considerably simpler. While your connected devices will have their own cables, you shouldnt neglect the cable length of the power inverter itself, especially on ones that connect to the battery directly in the manner of jumper cables. as you wont want it to be stuck on heated elements of your motor. Ideally, a power inverter should be able to run up and out of the car, preferably sitting on a portable table. Luckily, even if included cables are short, most are able to be replaced by longer ones.
A majority of the power inverters above are ETL listed for safety. This, alongside a UL listing, means that the product passed a set standard for safety and performance as measured by a third party organization. An overview of the UL requirements for inverters will, for all practical purposes, give you an idea of what it means to be ETL listed as well, as the regulating bodies are closely related.
Note that you are more likely to find these sorts of listings on more advanced power inverters. For a small device that you connect to your cigarette lighter, it might not really be worth it in the minds of the manufacturer to go through the trouble of getting it listed. Not having an ETL or UL listing doesnt mean that a product is unsafe especially if there are thousands of raving reviews of it online but these safety ratings are a good step towards greater peace of mind.
This article is managed and created separately from the Digital Trends Editorial team.