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

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

List Price: $45.99
Price: $27.99 Details

Availability: Usually ships in 24 hours
Fulfilled by Amazon and Sold by BESTEK.

Average customer review:
(4.5 stars, based on 4355 reviews)

Product Details

  • Sales Rank: #14 in Lawn & Patio
  • Brand: BESTEK
  • Model: MRI3011BU
  • Number of items: 1
  • Dimensions: 6.00" h x 2.40" w x 6.70" l,


  • BESTEK Advantage: America's leading power inverter brand. Provides 300 Watts continuous DC to AC power and 700 Watts instantaneous power, featuring 2 AC outlets and 2 USB ports for multi-purpose charging
  • Fast Charging: two 110V AC outlets for charging larger devices such as laptops and tablets, 2 USB charging ports (2.1A & 1A) for powering USB compatible devices
  • Ultra Compact and Lightweight: iPhone-sized 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
  • Mufti-Protection: built-in 40 amps fuse to protect your device. Safe charging design provides protection against, overheating, under and over voltage charging, short circuiting, overloads, and overcharging
  • Durable metal housing provides advanced protection from drops and bumps. Integrated cooling fan helps reduce heat and prevents shortages. 18-Months Warranty

BESTEK America's Leading Power Inverter

• The highest average review rating of any power inverter brand.
• Designed as a portable power inverter with high performance to power up multiple loads and major household appliances.

300W DC to AC Power Inverter

• Ultimate car travel charger road trips, vacations, outdoors, emergency kits and more.
• Enjoy 3.1A 2 USB ports and 2 standard plug outlets for convenient charging on the road.
• Travel-sized design is ideal for use on vacations, work trips, and camping.
• Featuring a universal cigarette lighter plug that plugs into almost any vehicle.

Product Specification :

• Power (2 AC Outlets): 300W Rated, 350W Max, 700W Peak
• Input Voltage: 12V DC, Output voltage: 110V-120V
• Dual USB Port Output: DC 5V, 3.1A rated. 2.1A & 1A
• Indicator: Green-operation, Red-shutdown
• Over Voltage Shutdown: DC 15V-16V, Low Voltage Shutdown: DC 10V-11V
• Dimensions are: 4.8" x 3.13" x 1.88"

Optimal Use and Precautions :

• Please use battery clips when using inverter on device over 150W.
• For DC12V and Car ONLY, not applied for DC 24V and airplane use.
• Please do not leave the power inverter in the ON position while your car is off.
• The cooling fan remains on continuously. This means you'll only be able to use it in situations where the car is running.
• Avoid placing the inverter into sunlight directly or next to heat-sensitive materials to protect inverter from getting too warm.
• Please understand device wattage usage Caution! Do not use high power electric devices such as hair dryers, electric heaters, curling irons, etc.

Package List :

• 1 x 300W Power Inverter
• 1 x User Manual

Good to know:

• With 18 Months Warranty and Friendly, Easy-to-Reach Support.

Customer Reviews

Most helpful customer reviews

162 of 169 people found the following review helpful.
By Robert S.
3-1-15. I just received this inverter a few days ago! The ac outlets work great! I will definitely try it out on my next power outage! The only two things that I don't like are the cigarette lighter plug has the cord directly wired without a fuse and the 40 amp fuse the unit has is inside soldered to it's pc board. (see picture) That will make it hard to replace the fuse. Other than that the inverter is a great price and was shipped to me in 8 days! Update 11-5-16 (Warning) : The two USB plugs stay powered up all the time even if the power button is turned off. That could leave you with a dead car battery if you don't unplug the inverter.

0 of 0 people found the following review helpful.
3Not bad for the price
By Don
Not bad for the price. The cooling fan is loud even without a load, doesn't seem to be variable or load sensing. The fan does not come on when the switch is off, but the usb ports still are which is kind of nice. This would not power a small Milwaukee M12 battery charger as I'd hoped even though it is well below the required wattage. The charger takes 750mA @ 120 volts, this is only 90 watts! Not sure what the cause is but it immediately goes into protect. Might be because this is not a true sine wave inverter, you get what you pay for.

1 of 1 people found the following review helpful.
5Perfect for the job
By Frenchy
I bought this item so that a granddaughter could operate her laptop on a trip to Texas. The unit is lightweight and compact. It has more than enough output to power 2 laptops. The average laptop uses about 80w of power. She was able to watch dvds without any problem and play games as long as she wanted. The unit can be stored anywhere in the car, even the miniscule glovebox. Oh yeah, she loved the "candy apple red" color. If you don't have a "built-in" dvd player in your car, but own a laptop or tablet, this inverter will solve your problem.

See all 4355 customer reviews...