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CyberPower - M140BUC 140 W Power Inverter - Black

Model:
M140BUC
SKU:
6598821
Your price for this item is $32.99
The comparable value price is $34.99

Customer reviews

Rating 4.5 out of 5 stars with 53 reviews

Rating Filter

Rating by feature

  • Value

    Rating 4.7 out of 5 stars

  • Quality

    Rating 4.6 out of 5 stars

  • Ease of Use

    Rating 4.8 out of 5 stars

Pros mentioned filter

Cons mentioned filter

89%would recommend to a friend

Customers are saying

Customers frequently mention the M140BUC 140 W Power Inverter's excellent overall performance and compatibility with various devices. Positive feedback highlights its reliable operation and ability to power devices such as refrigerators and laptops. However, some users noted that the inverter produces some noise during operation and can get warm after extended use. These minor drawbacks appear to be outweighed by its generally positive performance.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 1 Showing 1-20 of 53 reviews

  • Great for Using your Hair Dryer in the Car

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great quality, great build for this portable power inverter. Added bonus of a USB-A and USB-C port. Hopefully it will last for atleast 10 years like my last one.

    I would recommend this to a friend
  • Pros mentioned:
    Charging speed, Overall performance

    Powered me right back up!

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This baby works amazingly. It powered me right back up and charged my laptop back to 100% within no time. I had no power loss or fluctuations while I was plugged in working from my personal vehicle. Another plus is the product is not loud like some of the other power inverters I have previously owned. This was a great buy for a great price!

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Clutch For the Car

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    Posted . Owned for less than 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    still testing it so review may change. first impressions are its a bit bigger and clunkier than i had anticipated. The plastic could be more rugged but overall enjoying it so far

    I would recommend this to a friend
  • Pros mentioned:
    Charging speed, Overall performance

    A Must-Have for Charging Laptops on the Go

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Highly recommended: In the absence of an affordable alternative for charging laptops in the car, this device is a game changer. It is reliable, cost effective, and perfect for keeping your laptop powered while traveling or as a convenient extra charging option. I have gotten a ton of use out of it and it is definitely worth having on hand.

    I would recommend this to a friend
  • Pros mentioned:
    Charging speed, Compatibility

    Preliminary review: works well and is fairly quiet

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I've used it a couple times on long trips with my USB-C charger to my iPhone 16 and it was quieter and a quicker charge than a previous device (different company) I used. Charging my Mac one time a long time ago worked too. (Extra pro tip: just be aware that the block for a Mac charger may be too big to plug in your phone at the same time.) Thankful for this product and I'm glad I bought it!

    I would recommend this to a friend
  • Pros mentioned:
    Charging speed
    Cons mentioned:
    Noise level

    Powers my laptop on the go

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    Posted . Owned for 2 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I agree with some of the other comments that it is not quiet when charging after a while but it charges my laptop like it is plugged into the wall. I would suggest this to someone who wants access to a plug in your car that is used on occasion.

    I would recommend this to a friend
  • Pros mentioned:
    Portability

    Great for on the go!

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This is th eperfect addition for a high-tech family whois always on the go. As a remote worker, I needed additional car ports/inverter that would support my phones and my laptop and this fit perfectly!

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Car charger

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    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Worked great. I had a day of doing computer work as the passenger in my car and my battery stayed charged all day

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Work from home

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    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works great if you have a lighter outlet. I used it to work from my car.

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Power Adapter

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works very well when I travel and need to charge the laptop

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance, Portability

    Charger

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Reliable and works great, compact/portable. Great to use in the car.

    I would recommend this to a friend
  • Pros mentioned:
    Portability

    On the go

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    Posted . Owned for less than 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Now i can plug in anything while im on the go. I love it

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Great addition

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    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works great in side jeep wrangler for Halloween decorations

    I would recommend this to a friend
  • Cons mentioned:
    Heat dissipation

    Great for traveling

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    purchased this item to use a heating pad, and small fan in the car on long car ride. it serves its purpose. The device will get warm/hot if used for a 4hrs or longer.

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Car charger

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Convert my wall charger in the car. Works fine. No problems so far.

    I would recommend this to a friend
  • Cons mentioned:
    Noise level

    Mr.

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works as described, makes some minor noise but to be expected from a device as this. Have another product that is much noisier than this one. No real bother.

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    All in One

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works great and meets my expectations. Does and supplies all my power needs.

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Trip

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works well. We made a trip to Corpus Christi and it work on my little refrigerator. We used it going there and coming back home

    I would recommend this to a friend

  • Power Converter with Adjustments

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I needed a conversion to charge our laptop while traveling. The swivel option was well needed; it helped greatly with our cigarette lighter outlet

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    happy with purchase!

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    so convenient & great quality. bought this to charge my laptop while traveling for business!

    I would recommend this to a friend
Page 1, Showing 1-20 of 53 reviews
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