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

  • Based on 32,868 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Feb 25
Order within 6 hours and 38 minutes
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Model: MRI3011BU


Features

  • BESTEK Advantage: Provides 300 Watts continuous DC to AC power and 700 Watts instantaneous power, featuring 2 AC outlets and 2 USB ports. Note: It only works with 12V battery, it doesn't work with Tesla Model Y
  • Fast Charging: two 110V AC outlets for charging larger devices such as laptops and tablets, 2 USB charging ports (0-2.4A) for powering USB compatible devices
  • Ultra Compact and Lightweight: compact design ideal for use on vacations, work trips, and camping. 24 inch cigarette lighter plug makes the power inverter can be plugged into almost any vehicle
  • Multi-Protection: built-in 40 amps fuse to protect your device. Safe charging design provides protection against, overheating, under and over voltage charging, short circuiting
  • Durable metal housing provides advanced protection from drops and bumps.Smart cooling fan system makes the car power inverter very silent when operating,and the fan runs faster when the device gets warmer or output power exceeds 70W.

Brand: BESTEK


Recommended Uses For Product: Vehicle


Power Source: DC


Wattage: 300 watts


Model Name: MRI3011BU


Product Dimensions: 4.8 x 3.1 x 1.9 inches


Item Weight: 14.4 ounces


Item model number: MRI3011BU


Is Discontinued By Manufacturer: No


Date First Available: February 5, 2011


Manufacturer: BESTEK


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Feb 25

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Easy, compact and works great at a great price
Model: MRI3011BU
I couldn’t be happier with the BESTEK 300W Power Inverter. It’s compact, powerful, and incredibly reliable, making it the perfect travel companion for vacations, work trips, and even camping. The dual AC outlets are ideal for charging larger devices like laptops, while the two USB ports handle my phone and tablet effortlessly. The fast-charging capability is a game-changer on the go. The build quality is exceptional—the metal housing feels sturdy, and the smart cooling fan ensures it runs quietly, even during heavy use. I also appreciate the built-in safety features, like the 40-amp fuse and protections against overheating and voltage issues, which give me peace of mind. BESTEK’s attention to detail, from the long cigarette lighter plug to the 60-month warranty, shows they truly stand behind their product. If you’re looking for a reliable and versatile power inverter, this one’s a no-brainer. Highly recommend! ... show more
Reviewed in the United States on January 10, 2025 by Joe Miller Joe Miller

  • Useful and reliable
Model: MRI3011BU
I've had this inverter for over 9 years now, taken it on multiple cross country trips, including ones that have involved car camping where this was our only source of 110 AC power for days at a time. I originally bought it after such a trip where we found the 1 amp USB slots that were factory-installed in our SUV didn't put out enough juice to recharge my wife's iPad while she used it, or even get it to a full charge in a reasonable amount of time when she wasn't using it. Since then this inverter has powered laptops, portable DVD players, iPads, and phones, often all at the same time, while providing steady power and not overheating, thanks to its built-in fan. I think the few people who have had problems with this are either trying to use it with devices that draw too many amps, and/or their car's electrical system is limited and not designed for such an inverter (see further explanation below. So my advice is: 1. Stick to the devices it (and your car's electrical system) were designed to provide power for, and avoid amp-hungry appliances like power tools and coffee makers I've seen mentioned in the low reviews (SMH). 2. Check the specifications of your car's electrical system and its output from its cigarette lighter outlets before you buy this inverter, and before you jump to blaming this inverter when things go wrong. Car cigarette lighters are practically never designed to be on a circuit all by themselves, and depending on the car model the cigarette lighter could be on the same circuit only with low-draw components like dashboard lights and overhead interior lights (many of which would not necessarily even draw current at the same time that often), or it could be on the same circuit as a high-draw component like, say, your car's air conditioning system. That is going to make a big difference as to how much additional load that circuit your cigarette lighter is able to handle, and thus will affect what you can plug into the inverter. I personally have used this in a 2011 Toyota Venza, 2011 Chevy Malibu, 2017 Mazda 6, and a rental in 2016 that was either a Chevy Tahoe or GMC Yukon, and again, never had any issues in any of these cars, but other vehicles (including newer generations of these same models) may have the issues I mentioned above. ... show more
Reviewed in the United States on January 3, 2024 by Mark in Texas

  • Great for battery chargers
Model: MRI3011BUPD65W
Bought for charging batteries in a bucket truck, works great, seemingly well built with 2 outlets a usb and type c charger. Fairly priced in comparison to other options, would recommend.
Reviewed in the United States on December 21, 2024 by justin

  • Works
Model: MRI3011BUPD65W
Works well, powers my RV tv
Reviewed in the United States on February 9, 2025 by Dominic Pallini

  • Nothing Better
Model: MRI3011BU
Works Like a charm, can charge my laptop, steam deck and both my girlfriend's phone and mine. Perfect for traveling the distance but wanting a faster charge then just through the normal car port
Reviewed in the United States on December 31, 2024 by Ty

  • It works great
Model: MRI3011BU
It has two 12 volt ports it has 2 USB ports and a led light to indicate when the unit is on
Reviewed in the United States on February 7, 2025 by Anthony Hirsh

  • Nice little unit for road trippers with gadgets like me.
Model: MRI3011BU
Good for road trippers like me who need to use my car as a power station and charge my various gadgets. Until I get a nice battery/power station, this little unit will suffice. This things is good for charging my drone, gaming laptop, cameras, phones, and lights. Great little thing. People recommend to keep this thing flat and horizontal, and to not block the fan in the rear. Do not plug large appliances into this thing. You will blow a fuse. ... show more
Reviewed in the United States on December 4, 2024 by Thinh Dominick Bui

  • Works for intended purpose.
Model: MRI3011BU
Using this in a 2006 Dodge Caravan, got tired of messing with the radio that keeps resetting every time I start the car so put my Klipsch ProMedia 2.1 THX certified speakers in my van. Speaker only use 2 amps, 200 watts. It works and there’s no hum or noise coming through the speakers. I am completely satisfied now that I can turn up the volume and jam. ... show more
Reviewed in the United States on December 22, 2024 by Carl Carl

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