Main Content

Customer Ratings & Reviews

Customer reviews

Rating 4 out of 5 stars with 326 reviews

Rating Filter

Rating by feature

  • Value

    Rating 4.1 out of 5 stars

  • Quality

    Rating 4.1 out of 5 stars

  • Ease of Use

    Rating 4.2 out of 5 stars

Pros mentioned filter

Cons mentioned filter

78%would recommend to a friend

Customers are saying

Customers are impressed with the power output and overall performance of the POWER 500 Watt Power Inverter, especially noting the effectiveness of the USB charging ports. The device is also appreciated for its ease of use in smaller vehicles and reasonable price. However, some customers have reported concerns about excessive noise and, in a few instances, a strange smell.

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 5 Showing 81-100 of 326 reviews
  • Pros mentioned:
    Usb

    Rated 3 out of 5 stars

    It is ok power inverter

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

    It struggles to start a small fan. Otherwise it works with laptop chargers, small tv etc

    I would recommend this to a friend
    • Brand response from Cedar Electronics Team
      Posted .

      Thank you for choosing Cobra. The POWER 500 inverter is ideal for small fans. To better assist, we would need more details. Please contact us at 800-543-1608. We're happy to help and look forward to hearing from you! cedarelectronics-cobra

  • Pros mentioned:
    Usb

    Rated 4 out of 5 stars

    Good device

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

    good device for the money. Had the right plug in and was on sale!

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

    Rated 4 out of 5 stars

    power inverter

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

    couldn't get it to work for what I was trying to use it for but seemed like pretty nice device

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

    Rated 3 out of 5 stars

    Mr

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

    If you connect this directly to a car battery this unit works well. However...when operating on cigarette lighter it would not power my MacBook ProSpecs say it should...it didn't. The cooling fan is very noisy.

    No, I would not recommend this to a friend
  • Pros mentioned:
    Power output

    Rated 5 out of 5 stars

    Great little unit

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

    This power inverter is a really good value for the price. With two outlets and 500 watts of power, it was enough to run the equipment I plugged into it. The bonus is the fast charge USB outlet. I didn't have to plug into the power outlet also.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    great inverter

    |
    |
    Posted . Owned for 1.5 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    very nice, compact inverter. Quiet operation and good power capacity for it's size.

    I would recommend this to a friend
    • Brand response from Cedar Electronics Team
      Posted .

      Thank you so much for the great review! cedarelectronics-cobra

  • Pros mentioned:
    Power output

    Rated 5 out of 5 stars

    Great Inverter Good Price

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

    Great for having backup power in power outages. Turns my car into a mini generator. Use the battery clamps to hook to your car battery. Crank the car in idle and plug in an extension cord to run a couple of lamps and even a TV! Great for basics. I can also use while at the camp site to power my phone's, radios, or laptop.

    I would recommend this to a friend
  • Pros mentioned:
    Power output

    Rated 5 out of 5 stars

    It works very well

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

    Powerful and convenient. I would recomend it without hesitation.

    I would recommend this to a friend
    • Brand response from Cedar Electronics Team
      Posted .

      Thank you for the fantastic review and for recommending our product! cedarelectronics-cobra

  • Pros mentioned:
    Power output

    Rated 5 out of 5 stars

    Great Inverter!

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

    Bought this to replace an old 400W. Plugged in and it fired up and has been running great with no issues. Has a power switch to power it on and off without having to unplug it, which is nice.

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

    Rated 5 out of 5 stars

    Gets the job done

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

    Happy to say it Works as expected. Gets the job done!

    I would recommend this to a friend
    • Brand response from Cedar Electronics Team
      Posted .

      Thanks for the amazing review! cedarelectronics-cobra

  • Pros mentioned:
    Usb

    Rated 5 out of 5 stars

    Cobra

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

    For its price and its power rating I haven’t came across anything better. Love how it have a usb C port as well as a USBA port.

    I would recommend this to a friend
    • Brand response from Cedar Electronics Team
      Posted .

      Thank you so much for the great review! cedarelectronics-cobra

  • Pros mentioned:
    Performance

    Rated 5 out of 5 stars

    Love it

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

    Very simple and reliable. Works like a charm. However I’m not sure if the plug itself is too long or my outlet is too short. The connection is very prone to fall out if touched

    I would recommend this to a friend
  • Pros mentioned:
    Power output

    Rated 5 out of 5 stars

    Best inverter I could purchase.

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

    Works great. The only thing I would change is the cord to the 12V outlet is about a foot too short. Other than that this unit works well. I work out of the truck occasionally and this unit kept my laptop powered up and my IPad.

    I would recommend this to a friend
  • Pros mentioned:
    Power output

    Rated 4 out of 5 stars

    Converter

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

    Good unit off you need some extra juice. Go cobra!

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

    Rated 5 out of 5 stars

    Cobra

    |
    |
    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Perfect Work everything time and no have problems I love

    I would recommend this to a friend
    • Brand response from Cedar Electronics Team
      Posted .

      Thank you for the great review! cedarelectronics-cobra

  • Pros mentioned:
    Power output

    Rated 4 out of 5 stars

    Great inverter

    |
    |
    Posted . Owned for 9 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Work great for what you need extra power with protection

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Power charger

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

    I bought this so I can work even when I’m traveling. It has never failed me. It is very handy and easy to plug in. One of my best purchase so far.

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

    Rated 5 out of 5 stars

    Worth it

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

    Used this to charge my laptop and legion go while on a road trip. Good investment this got the job done

    I would recommend this to a friend
    • Brand response from Cedar Electronics Team
      Posted .

      Thank you so much for the great review! cedarelectronics-cobra

  • Pros mentioned:
    Price

    Rated 5 out of 5 stars

    Inverter

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

    Excellent product, have had no issues. Used it to charge my laptop in my work truck, via the plug in charger.

    I would recommend this to a friend
    • Brand response from Cedar Electronics Team
      Posted .

      Thank you for the great review! cedarelectronics-cobra

  • Pros mentioned:
    Usb

    Rated 5 out of 5 stars

    Solid Inverter

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

    Working good, you can connect to battery or not, with inside outlet only get 100W

    I would recommend this to a friend
    • Brand response from Cedar Electronics Team
      Posted .

      Thank you for the great review and for choosing Cobra! cedarelectronics-cobra

Sponsored