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travisshyn 11.3K Views
Oct 19, 2026 1:50 PM

400W BESTEK Car Power Inverter 12V to 110V w/ 2AC & USB-C/USB-A Ports

$23

$50

54% off
Amazon
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Deal Details
BESTEK. via Amazon has 400W BESTEK Car Power Inverter (MRI4011CU-PD30) on sale for $32.98 - $9.89 (apply promo code X8L7TK2D at checkout) = $23.09. Shipping is free with Prime or on $35+ orders.
  • Note: You must be logged in to clip coupons and apply promo codes; some codes may be one-time use and may not apply consistently.
Thanks to community member travisshyn for finding this deal.

Features:
  • Equipped with dual 110V AC outlets and USB-C (PD 30W)/USB-A (QC 3.0) ports
  • 32-pin cigarette lighter plug allows it to fit into almost any vehicle
  • Equipped with a built-in 40-amp fuse to protect your devices
  • ETL-certified, ensuring safety and quality

Editor's Notes

Written by megakimcheelove | Staff
  • Our research indicates that this offer is $23.90 lower (51% savings) than the next best available price from a reputable merchant with prices starting from $46.99.
  • 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 travisshyn
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
BESTEK. via Amazon has 400W BESTEK Car Power Inverter (MRI4011CU-PD30) on sale for $32.98 - $9.89 (apply promo code X8L7TK2D at checkout) = $23.09. Shipping is free with Prime or on $35+ orders.
  • Note: You must be logged in to clip coupons and apply promo codes; some codes may be one-time use and may not apply consistently.
Thanks to community member travisshyn for finding this deal.

Features:
  • Equipped with dual 110V AC outlets and USB-C (PD 30W)/USB-A (QC 3.0) ports
  • 32-pin cigarette lighter plug allows it to fit into almost any vehicle
  • Equipped with a built-in 40-amp fuse to protect your devices
  • ETL-certified, ensuring safety and quality

Editor's Notes

Written by megakimcheelove | Staff
  • Our research indicates that this offer is $23.90 lower (51% savings) than the next best available price from a reputable merchant with prices starting from $46.99.
  • 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 travisshyn

Community Voting

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Top Comments

Alchemic
344Comments
96Reputation
be advised that many car's 12v cig outlet can't handle 400w and will blow a fuse.
Go to Comment
SlyderDeals
15.5KComments
1.3KReputation
FYI, when applying coupon codes in the Amazon app, you need to tap on the arrow at the end of the coupon field to get it to apply. It's very easy to miss that.
Go to Comment

Community Reviews

BESTEK's 400W car power inverter is a compact 12V-to-110V adapter that works well for light electronics like laptops and phone chargers, and the hard-wired plug makes it easy to use in the car. The input range of 11 to 17 volts also fits a Tesla low-voltage battery. The main caution is power draw, since many cigarette-lighter circuits and fuses cannot safely handle 400W, and the unit may blow a fuse if the load is too high. It is best suited to modest charging needs rather than heavy appliances.

  • The inverter can charge a laptop even when the output waveform is modified rather than pure sine.

    robertsmtrkndude299

  • The coupon code can fail on the first attempt in Amazon, but refreshing and reapplying can make it work.

    travisshyn

  • The inverter's 11-17V input range can fit Tesla LVB compatibility needs.

    SmilingShape376

  • The cigarette-lighter connection is hard-wired on this model, which can simplify setup compared with clip-based connections.

    trkndude299

  • Vehicle fuse ratings can limit safe use, since a 20A or 15A fuse may be inadequate for the inverter's higher draw.

    testshoothondaman82clinteastwood

  • A modified-wave output can prevent some solar battery setups from turning on and can slow recharging via 12V.

    trkndude299trkndude299

  • Many cars' 12V cigarette outlets cannot handle 400W and can blow a fuse.

    Alchemic

  • The stated 40A input current can exceed typical lighter circuit limits, which may require heavier wiring than most cars use.

    arons

Common Questions (3)

AI-generated summary based on comments from the community. Updated ago

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22 Comments

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Oct 19, 2026 2:07 PM
566 Comments
Joined Dec 2012
jefreemaOct 19, 2026 2:07 PM
566 Comments
Can't get code to work.
Original Poster
Pro
Oct 19, 2026 2:18 PM
7.8K Comments
Joined Oct 2005
travisshynOct 19, 2026 2:18 PM
Original Poster
Pro
7.8K Comments
Quote from jefreema View quoted comment :
Can't get code to work.
Hi, I just tested it and it worked. Some times you have to do it more than once with Amazon. Also, The first time I applied it, it failed and when I clicked back on the browser, it refreshed and it applied.
Oct 19, 2026 2:43 PM
566 Comments
Joined Dec 2012
jefreemaOct 19, 2026 2:43 PM
566 Comments
Quote from travisshyn View quoted comment :
Hi, I just tested it and it worked. Some times you have to do it more than once with Amazon. Also, The first time I applied it, it failed and when I clicked back on the browser, it refreshed and it applied.
I was able to get it to work on a desktop. Thanks for this
Global Mod
Oct 19, 2026 3:09 PM
15.5K Comments
Joined Dec 2007
SlyderDeals
Global Mod
Oct 19, 2026 3:09 PM
15.5K Comments

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

Quote from jefreema View quoted comment :
Can't get code to work.
FYI, when applying coupon codes in the Amazon app, you need to tap on the arrow at the end of the coupon field to get it to apply. It's very easy to miss that.
1
Oct 19, 2026 3:12 PM
566 Comments
Joined Dec 2012
jefreemaOct 19, 2026 3:12 PM
566 Comments
Quote from SlyderDeals View quoted comment :
FYI, when applying coupon codes in the Amazon app, you need to tap on the arrow at the end of the coupon field to get it to apply. It's very easy to miss that.
I def did that. I've used many codes on Amazon. This one was just giving me a hard time like OP mentioned. Thanks for the advice anyhow
Oct 19, 2026 10:09 PM
344 Comments
Joined Apr 2015
AlchemicOct 19, 2026 10:09 PM
344 Comments

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

be advised that many car's 12v cig outlet can't handle 400w and will blow a fuse.
6
Oct 19, 2026 11:07 PM
92 Comments
Joined Jul 2007
aronsOct 19, 2026 11:07 PM
92 Comments
Quote from Alchemic View quoted comment :
be advised that many car's 12v cig outlet can't handle 400w and will blow a fuse.
Yikes, 40 amp input current? I don't know any cars that can handle that. That would require 8 gauge wire to the lighter. They are usually 10 or 15 amps.

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Oct 19, 2026 11:50 PM
1.5K Comments
Joined Apr 2013
wavehunterOct 19, 2026 11:50 PM
1.5K Comments
I bought Jan 2026 for $26.00. Don't be fooled only a few bucks off. Good product, still working but definitely not the huge discount offered.

Edit to add we have not blew a fuse. 2009 Toyota Yaris.
2
Oct 20, 2026 6:17 AM
3.8K Comments
Joined Dec 2008
clinteastwoodOct 20, 2026 6:17 AM
3.8K Comments
Quote from wavehunter View quoted comment :
I bought Jan 2026 for $26.00. Don't be fooled only a few bucks off. Good product, still working but definitely not the huge discount offered.

Edit to add we have not blew a fuse. 2009 Toyota Yaris.
Kind of pointless data unless we know what you plugged in to it. A laptop being plugged in and one cell phone charger is probably fine, a TV and a laptop, probably not. If you have a 15 AMP fuse for the 12v accessories in your car it would blow quick if you're at 25 AMP draw or ~300w.
1
Oct 21, 2026 3:00 PM
4.3K Comments
Joined Oct 2015
pyroskater85Oct 21, 2026 3:00 PM
4.3K Comments
Does this have a hardwired cigarette plug or can you swap to alligator clips?
Oct 21, 2026 5:22 PM
501 Comments
Joined Nov 2019
StinktoothOct 21, 2026 5:22 PM
501 Comments
It would be nice if there were a code for the pure sine wave version. I've been waiting on one.
Oct 21, 2026 7:20 PM
1.2K Comments
Joined Oct 2018
trkndude299Oct 21, 2026 7:20 PM
1.2K Comments
Quote from pyroskater85 View quoted comment :
Does this have a hardwired cigarette plug or can you swap to alligator clips?
It's a hard wired plug for this model, which is what you for this particular device.
If you're going the clip route, I'd get a bigger, true pure sine inverter to be able to charge solar batteries.
Oct 21, 2026 7:24 PM
1.2K Comments
Joined Oct 2018
trkndude299Oct 21, 2026 7:24 PM
1.2K Comments

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

Quote from Stinktooth View quoted comment :
It would be nice if there were a code for the pure sine wave version. I've been waiting on one.
I have 2 of the older 300w pure sine wave inverters.
They are not pure sine, they are modified sine wave, even though they were advertised as a pure sine device.
They 140w charge my laptop, and my phone just fine, but my solar battery won't even turn on because of the dirty wave. And recharging the solar battery takes close to 30 hours via a 12v plug.
1
Oct 21, 2026 7:29 PM
639 Comments
Joined Dec 2008
robertsmOct 21, 2026 7:29 PM
639 Comments
If you live near a Menards, they have a 300W version with 2 USB-A ports and free ship to store for $7.85

https://www.menards.com/main/300w...487669.htm
1

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Oct 22, 2026 6:56 AM
7.2K Comments
Joined Mar 2013
4SKZ8Oct 22, 2026 6:56 AM
7.2K Comments
I bought the 300w sine for my ev https://a.co/d/04ne6GOu

plan to use it to power my xfinity router during thr next pge outage. Hopefully xfinity equipment is on UPS

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