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  • BESTEK® Dual 110V AC Outlets and Dual USB 3.1A 300W Power Inverter Car DC 12V to 110V AC Inverter DC Adapter Laptop Charger Notebook Adapter DC Charger AC Adapter USB Charger for iPhone, iPad and iPod, Samsung Galaxy, Motorola Droid RAZR MAXX, HTC One, GPS and More
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BESTEK® Dual 110V AC Outlets and Dual USB 3.1A 300W Power Inverter Car DC 12V to 110V AC Inverter DC Adapter Laptop Charger Notebook Adapter DC Charger AC Adapter USB Charger for iPhone, iPad and iPod, Samsung Galaxy, Motorola Droid RAZR MAXX, HTC One, GPS and More

by Bestek
| 253 answered questions

List Price: $65.99
Price: $45.99
Sale: $26.99 & FREE Shipping on orders over $35. Details
You Save: $39.00 (59%)
In Stock.
Sold by BESTEK. and Fulfilled by Amazon. Gift-wrap available.
with dual USB port
  • BESTEK® Advantage: #1 Best Seller in Power Inverters. The highest average review rating of any power inverter brand. This item is 300W power inverter with 2 USB ports and 2 AC outlets.
  • Chargers: both USB and AC wall warts. Max 3.1A output for mobiles. Rated Power: 300W.
  • No loose parts to worry about, the plug is permanently attached and plugs directly into cig adapter.
  • Compact size and feel of this unit. The right 22" length cord reaches the passenger seat just fine from the console.
  • Road Trip Must-have with wide range of application. Full protection features and Auto-shutdown keep your appliance and car from damage.
2 new from $26.99

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$26.99 & FREE Shipping on orders over $35. Details In Stock. Sold by BESTEK. and Fulfilled by Amazon. Gift-wrap available.

Frequently Bought Together

BESTEK® Dual 110V AC Outlets and Dual USB 3.1A 300W Power Inverter Car DC 12V to 110V AC Inverter DC Adapter Laptop Charger Notebook Adapter DC Charger AC Adapter USB Charger for iPhone, iPad and iPod, Samsung Galaxy, Motorola Droid RAZR MAXX, HTC One, GPS and More + RoadPro RP-203EC 12V 12' Extension Cord with Cigarette Lighter Plug + Roadpro 12V Battery Clip-On and Cigarette Lighter Adapter
Price for all three: $39.62

Buy the selected items together

Special Offers and Product Promotions

Size: with dual USB port
  • Save $2.00 on BESTEK® 12V 24V Battery Clip On Car Cigarette Lighter Socket Adapter when you purchase 1 or more BESTEK® Dual 110V AC Outlets and Dual USB 3.1A 300w Power Inverter offered by BESTEK.. Enter code FKZ6OYQ5 at checkout. Here's how (restrictions apply)
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Product Details

Size: with dual USB port
  • Item Weight: 10.1 ounces
  • Shipping Weight: 1.1 pounds (View shipping rates and policies)
  • ASIN: B004MDXS0U
  • Item model number: MRI3011B-Y-3
  • Average Customer Review: 4.3 out of 5 stars  See all reviews (1,857 customer reviews)
  • Product Warranty: For warranty information about this product, please click here
  • Date first available at Amazon.com: February 5, 2011
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Product Description

Size: with dual USB port

BESTEK® Amazon's #1 Power Inverter Brand

• Devoted to designing a portable with high performance power inverter gained the highest average review rating.
• Providing best quality products of newly-fashionable and superior with professional customer service and end-users.

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. One USB with 1A and the other with 2.1A
• Indicator: Green-operation, Red-shutdown
• Over Voltage Shutdown: DC 15V-16V, Low Voltage Shutdown: DC 10V-11V

Optimal Use and Precautions :

• For DC12V and Car ONLY, not applied for DC 24V and airplane use.
• 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.
• Get to know its voltage using range, not allowed high power electric devices such as hair dryer, electric heaters, curling iron and etc.

Package List :

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

Good to Know: with 12 Months Warranty and Provide Friendly, Easy-to-Reach Support.


Customer Questions & Answers

Customer Reviews

The fan is a little bit loud.
David Coons
Charges my phone, iPad and laptop, all at the same time!
musicman183
Great for long car trips and camping!
Susan

Most Helpful Customer Reviews

475 of 513 people found the following review helpful By D. Taylor TOP 1000 REVIEWER on April 1, 2012
Size Name: with dual USB port
Length: 1:56 Mins
Arrived bubble wrapped in a small priority shipping box; not a retail package. This is a 1 piece unit, no accessories and a single half sheet of instructions. No loose parts to worry about, the plug is permanently attached and plugs directly into cig adapter. I like the compact size and feel of this unit. The cord is about the right length for me, there is 22" of wire between the plug and the unit. It'll reach the passenger seat just fine from the console. Mine works and produces modified AC power which runs my gadgets nicely (chargers: both USB and AC wall warts). The included USB ports are a bonus. My biggest disappointment is that the fan remains on continuously. This means I'll only be able to use it in situations where the car is running. I had hoped the fan would only turn on when it needed to cool down.

I want to be clear that this is a nicely working unit that will be fine in your running car. My initial goal was to find an inverter that would work in a n off the grid battery based situation. Due to the inefficiencies of a continuous fan, this unit is not a reasonable choice in an off grid battery situation. In an off the grid system, you want to minimize your idle power drain.

I bought this unit hoping I could use it in a camping kit but it would quickly drain my solar charged portable battery system (only 9Ah). I'm going to keep it, but it's less useful than I had hoped. I won't be able to leave this unit turned on when I'm away from the car or it'll drain the car battery, which is also unacceptable. You can get around that issue by plugging it into a 12v outlet that is switched on with your car. Note that by going to a unit that provides less watts out I was able to get one that works without a fan running all the time.
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136 of 145 people found the following review helpful By Allie on July 15, 2011
Size Name: with dual USB port Verified Purchase
I purchased this adapter for my cross country road trip and it has been so useful! We frequently camp and the adapter is perfect for charging phones and cameras. I've used it for my hair straightener and we have used it to inflate our inflatable mattress. HIGHLY recommended. The customer service from this company is fantastic as well.
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95 of 103 people found the following review helpful By Shou Hamasaki on April 15, 2014
Size Name: with dual USB port Verified Purchase
At first I was surprised at how small this inverter is. I was able to tuck it up under the dash where it is hardly noticeable. I tested the outlets. They worked fine to power my MacBook Air in my car. I checked the USB ports to charge two phones at the same time. It provided AC charging notifications on both my Samsung phones at the same time. The SGS4 was in the higher amp USB port and the SGS2 is in the lower amp USB port. But both show fast charging (as if plugged into AC). All this while the laptop was being charged as well. I have a laser printers in my car's mobile office, but I am planning on swapping that out with an ink jet so I can keep this little inverter in my car and not need anything more. The laptop is the main deal.

I read the reviews about the fan being loud. It certainly is noticeably loud. It runs constantly when the inverter is switched on. One interesting thing I noticed is that if you switch off the inverter, it still provides power to the USB ports. So, here is my current set up. Normally, driving around with the inverter switched off, charging my two phones. When I need the MacBook Air, I switch it on. The fan will come on then. I can charge the Air and the two phones at the same time. When I'm done with the Air (not likely to be using it while driving), then I can switch the inverter off and keep charging the two phones. So this ability to keep using the USB ports when the inverter switch (and fan) is off mitigates the fan noise issue some.
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196 of 223 people found the following review helpful By Smith on September 22, 2012
Size Name: with dual USB port Verified Purchase
Length: 2:24 Mins
Overall I can recommend as long as you understand what you are getting. A nice little inverter for the money. The things that might surprise you is the little cooling fan never turns off. Not a super big deal but it does draw a little under half an amp just to run the units cooling fan. Having two USB ports was why I bought it. Watch the video and you will see more about power draw.
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108 of 129 people found the following review helpful By Cisco Kid on November 15, 2012
Size Name: with dual USB port Verified Purchase
I was watching the coverage of the aftermath of hurricane Sandy when the reporter showed a line of people waiting to plug in their personal communication devices in a power strip that the mobile reporting van had generously given them access to, and it occured to me that a simple 12 volt power port (cigarette lighter socket) adapter might be handy in the event of a power failure lasting for more than a day or two. Realizing that everyone in my household has different charging adapters, I thought that maybe I should look for a small inverter where we could all recharge our devices from the 120 volt output of such a device. Now I realize that you can drop a lot of money in a hurry when you start getting into higher output true sinewave inverters and I wasn't really looking to bust my budget, so when I came across this one for 26 bucks I ordered one just for emergencies. I also own a ES5000 12 volt jumper pack which has a power port built in, so I plugged in the BESTEK inverter and my Intertek "KILL A WATT" power monitor and tried out a variety of different devices. Unloaded, the output was 112 volts. Loaded, it rose to 116 volts- both acceptable. The frequency held rock solid at 59 Hz, again acceptable. I powered everything from a small battery charger (Dremal tool) to my laptop, to a radio/ CD player, to a small 50 watt table lamp. Everything worked as advertised. The fan does run continuously and it does make a fan noise but that doesn't affect what I'm going to use it for. You might want to consider buying a power socket that has alligator clips attached so you can power it from a stand alone battery if necessary. Remember, this is only a 300 watt inverter so check out the amperage draw of what you are going to power up first (volts X amps = watts) i.e. a 300 watt bulb @ 115 volts draws 2.61 amps. So limit your device draw to about 2.5 amps and you will do just fine.
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