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frontpageDesertGardener | Staff posted Aug 6, 2026 10:35 PM

BESTEK 300W Car Inverter DC 12V to AC 110V w/ 2x AC & 2x USB A

$20

$35

42% off
Amazon
83 Comments
37.7K Views
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Deal Details
Update: This popular deal is still available.

BESTEK. via Amazon has BESTEK 300W Car Inverter DC 12V to AC 110V w/ 2x AC & 2x USB A (MRI3011BU) on sale for $26.99 - $7.56 with promo code 6JXXVHX7 at checkout = $19.43. Shipping is free w/ Prime or on $35+ orders.

Thanks to Staff Member DesertGardener for sharing this deal.
  • Note: You must be logged in to clip coupons or apply promo codes. Coupons/Promo codes may vary by account or may need to be re-applied in order to discount properly.
Details:
  • 300W continuous / 700W peak DC to AC power inverter, 11-17V compatible including Tesla
  • 2 AC outlets and 2×4.8A USB ports
  • Compact iPhone-sized design with 32-inch cigarette lighter plug
  • Built-in 40A fuse with protection against overheating, under/over voltage and short circuiting
  • Durable aerospace aluminum housing with smart cooling fan (silent until warmer or >70W output)
  • ETL certified
  • 5-year / 60-month product replacement warranty with 24/7 support

Editor's Notes

Written by megakimcheelove | Staff
  • At the time of this posting, our research indicates that this is $7.56 lower than the next best comparable online prices starting from $26.99.
  • This price matches our May '26 Frontpage Deal.
  • Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
  • If you're not a student, there's also a free 1-Month Amazon Prime trial available.

Original Post

Written by DesertGardener | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Update: This popular deal is still available.

BESTEK. via Amazon has BESTEK 300W Car Inverter DC 12V to AC 110V w/ 2x AC & 2x USB A (MRI3011BU) on sale for $26.99 - $7.56 with promo code 6JXXVHX7 at checkout = $19.43. Shipping is free w/ Prime or on $35+ orders.

Thanks to Staff Member DesertGardener for sharing this deal.
  • Note: You must be logged in to clip coupons or apply promo codes. Coupons/Promo codes may vary by account or may need to be re-applied in order to discount properly.
Details:
  • 300W continuous / 700W peak DC to AC power inverter, 11-17V compatible including Tesla
  • 2 AC outlets and 2×4.8A USB ports
  • Compact iPhone-sized design with 32-inch cigarette lighter plug
  • Built-in 40A fuse with protection against overheating, under/over voltage and short circuiting
  • Durable aerospace aluminum housing with smart cooling fan (silent until warmer or >70W output)
  • ETL certified
  • 5-year / 60-month product replacement warranty with 24/7 support

Editor's Notes

Written by megakimcheelove | Staff
  • At the time of this posting, our research indicates that this is $7.56 lower than the next best comparable online prices starting from $26.99.
  • This price matches our May '26 Frontpage Deal.
  • Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
  • If you're not a student, there's also a free 1-Month Amazon Prime trial available.

Original Post

Written by DesertGardener | Staff

Community Voting

Deal Score
+231
Good Deal
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Top Comments

FabulousStranger526
561Comments
90Reputation
Make sure your vehicle has the circuitry for this. Many cars' 12V sockets are only rated (and equipped with a limiting fuse) for 10 or 15 Amps, whereas this would require at around 30 Amps minimum (allowing for conversion inefficiency) to output 300W sustained.
Go to Comment
gathermewool
1.7KComments
134Reputation
"Input: 11-17V DC 28.5A"
Go to Comment
Deadval
84Comments
18Reputation
Any device requiring electricity that isn't a phone?
Go to Comment

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83 Comments

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Aug 7, 2026 10:04 PM
1.7K Comments
Joined Sep 2018
gathermewoolAug 7, 2026 10:04 PM
1.7K Comments

Our community has rated this post as helpful. If you agree, why not thank gathermewool

Quote from FabulousStranger526 :
Make sure your vehicle has the circuitry for this. Many cars' 12V sockets are only rated (and equipped with a limiting fuse) for 10 or 15 Amps, whereas this would require at around 30 Amps minimum (allowing for conversion inefficiency) to output 300W sustained.
"Input: 11-17V DC 28.5A"
5
Aug 7, 2026 10:06 PM
1.7K Comments
Joined Sep 2018
gathermewoolAug 7, 2026 10:06 PM
1.7K Comments
Quote from FabulousCrow6109 :
Well, as long as it's cerficated! Lol
ETL, not UL. Better than nothing, but not ideal
1
1
Aug 8, 2026 1:51 AM
335 Comments
Joined Mar 2015
WaitWhaatAug 8, 2026 1:51 AM
335 Comments
As FabulousStranger526 said, make sure you have a 30A fuse or else you're going to have a 4th of July celebration when going full 300W. 😁
1
Aug 8, 2026 3:33 AM
476 Comments
Joined Sep 2009
sliver99Aug 8, 2026 3:33 AM
476 Comments
I've had this one for 9 years now just to charge up a work laptop on the road. It's a hassle, so once USB PD came out, it's stayed in the box.
1
Aug 8, 2026 3:39 AM
787 Comments
Joined Jun 2007
RojoGrandeAug 8, 2026 3:39 AM
787 Comments
Quote from tech_turtle :
The USB ports on this are mostly for charging phones etc while you also need the plugs, so you don't have to alternate what's using the cigarette lighter port. The main thing I've used one for is charging a laptop while on the road. These are also useful in power outages as a temporary generator (this one is not powerful enough to run a fridge though).
Ditto. Laptops in my car get the most usage for this.
Aug 8, 2026 5:29 AM
333 Comments
Joined Jun 2012
edoubledeezyAug 8, 2026 5:29 AM
333 Comments
Bought this about 10 years ago now and it's still going strong.
1
Aug 8, 2026 5:40 AM
58 Comments
Joined Nov 2019
SavageDeals101Aug 8, 2026 5:40 AM
58 Comments
Quote from Deadval :
Any device requiring electricity that isn't a phone?
I used to play my Xbox one in my car with the screen I had with one of these. Mine was only a 150w

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Pro
Aug 8, 2026 9:13 AM
2.9K Comments
Joined Nov 2010
TACO_Trader
Pro
Aug 8, 2026 9:13 AM
2.9K Comments
Quote from thetickthetick :
Have had this for years. Works great.
Same here and the usbs are hot or on even if the mains are off
Pro
Aug 8, 2026 9:15 AM
2.9K Comments
Joined Nov 2010
TACO_Trader
Pro
Aug 8, 2026 9:15 AM
2.9K Comments
Quote from Madnjack :
A serious question, what is the use if this when we can charge phone directly from car usb...
Laptops, charging batteries like Ryobi or Dewalt
Pro
Aug 8, 2026 11:00 AM
2.9K Comments
Joined Nov 2010
TACO_Trader
Pro
Aug 8, 2026 11:00 AM
2.9K Comments
Shockingly no one ha mentioned sine wave.
2
Pro
Aug 8, 2026 11:05 AM
2.9K Comments
Joined Nov 2010
TACO_Trader
Pro
Aug 8, 2026 11:05 AM
2.9K Comments
Quote from FabulousStranger526 :
Make sure your vehicle has the circuitry for this. Many cars' 12V sockets are only rated (and equipped with a limiting fuse) for 10 or 15 Amps, whereas this would require at around 30 Amps minimum (allowing for conversion inefficiency) to output 300W sustained.
This model doesn't come with the battery clamps. I wonder if you could use an after market battery clamp to cigarette lighter for higher wattage draw aplications?
1
Aug 8, 2026 1:37 PM
304 Comments
Joined Jan 2024
StrongHeat5252Aug 8, 2026 1:37 PM
304 Comments
These are great but I prefer the style that has the outlets more separated. My 30w chargers can't be put side by side in this thing. But it still works and great, if you don't mind them being too close.
Aug 8, 2026 2:03 PM
1.4K Comments
Joined May 2018
Oil_BurnerAug 8, 2026 2:03 PM
1.4K Comments
Quote from fiveohmxco :
ive used this the past 4-5 years for christmas lights on my truck and has always worked great for that
That's a great idea :-)
Aug 8, 2026 2:04 PM
1.4K Comments
Joined May 2018
Oil_BurnerAug 8, 2026 2:04 PM
1.4K Comments
Quote from teaberry :
Does this have some sort of remote mobile app via BT to monitor usage and potential also turn on or off via app?
Would you also like fries with it?
4

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Aug 8, 2026 2:08 PM
2.2K Comments
Joined Dec 2006
CCyanescensAug 8, 2026 2:08 PM
2.2K Comments
Quote from Madnjack :
A serious question, what is the use if this when we can charge phone directly from car usb...
This has AC outlets, so anything that needs AC power or has its own adapter that isn't USB output. I used these years ago when on the road constantly for an air bed pump inflator, power tool battery charger, laptop power adapters, and I'm pretty sure we even ran a PlayStation/Xbox and small TV at some point to play in the truck.

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