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Customer Ratings & Reviews

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Customer reviews

Rating 4 out of 5 stars with 335 reviews

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  • 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

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78%would recommend to a friend

Customers are saying

Customers are pleased with the power output, overall performance, and USB charging capabilities of the POWER 500 Watt Power Inverter. The inverter is also praised for its ease of use, compact size, and reasonable price. However, some customers have noted that the inverter can be a little noisy. Additionally, a few customers have reported an unpleasant smell and concerns about battery life.

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 16 Showing 301-320 of 335 reviews
  • Rated 1 out of 5 stars

    Broke after 6 weeks of use

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

    Purchase it, installed it, and it broke after 6 weeks of use.

    No, I would not recommend this to a friend
    • Brand response from Cedar Electronics Team
      Posted .

      We are sorry to hear that you had issues. The Power 500W Inverter is designed to be durable. Please contact us so that we can get more details about the issue you are experiencing and better assist you. Thank you. cedarelectronics-cobra

  • Rated 1 out of 5 stars

    No rechargeable

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

    Was definitely not was not what I thought it was. I thought it was chargeable and it has to be connected to a battery or plugged into your car to work.

    No, I would not recommend this to a friend
  • Rated 1 out of 5 stars

    Useless

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

    The included car plug doesn’t make good contact, loses power every time I hit a bump. I use it for connection to internet in field. Literally useless.

    No, I would not recommend this to a friend
    • Brand response from Cedar Electronics Team
      Posted .

      We're sorry to hear that you are having issues with your Cobra power inverter. For additional support, please contact Cobra customer support at 1-800-543-1608 or online at https://www.cobra.com/pages/contact-us. cedarelectronics-cobra

  • Rated 1 out of 5 stars

    Over heats

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

    If turned off by in self just the soonest I plug a coffeemaker. Small no power at all . Waste of money!

    No, I would not recommend this to a friend
    • Brand response from Cedar Electronics Team
      Posted .

      The inverter can only output 500W of power continuously when connected directly to a 12V battery. Check to see what power wattage your coffee maker requires and if it needs a power output higher than 500W. If you need additional help, please contact Cobra customer support at 1-800-543-1608 or online at https://www.cobra.com/pages/contact-us. cedarelectronics-cobra

  • Rated 1 out of 5 stars

    The worst quality. Do not buy it.

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

    The product doesn't work, only 15 days to return it from Best Buy, I lost my money. Tje connector get out and a loud sound is on all the time. Unveliable bad quality.

    No, I would not recommend this to a friend
    • Brand response from Cedar Electronics Team
      Posted .

      Most likely the issue was due to the vehicle CLA jack dimensions are out of tolerance causing a loose or intermittent connection to the power inverter. An improved solution is to hardwire the inverter directly to the cars battery which will allow for the inverter to operate at it's full rated AC output level. cedarelectronics-cobra

  • Rated 1 out of 5 stars

    Car adapter won’t stay in place

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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.

    The side metal contacts of the car adapter are no rigid enough to keep the adapter firmly in the socket. The unit would only turn on for a second. It would only stay on if I applied pressure to the adapter deeply in the socket.

    No, I would not recommend this to a friend
  • Rated 1 out of 5 stars

    Useless if you plan on using in 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.

    What everyone said about the cigarette lighter plug is true. It doesn’t stay in place and causes the unit to constantly lose power.

    No, I would not recommend this to a friend
    • Brand response from Cedar Electronics Team
      Posted .

      Thank you for your valuable feedback. The cord should provide a secure fit. To better assist, please contact us at 800-543-1608. cedarelectronics-cobra

  • Rated 1 out of 5 stars

    Car Inverter

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

    It has burned me 2 fuses in my truck. The quality it’s “heavy” idk judge for yourself.

    No, I would not recommend this to a friend
    • Brand response from Cedar Electronics Team
      Posted .

      This doesn't sound right. We'd like to better assist. Please contact us at 800-543-1608, option 3 on the menu. Thank you. cedarelectronics-cobra

  • Rated 1 out of 5 stars

    WRONG RECOMMENDATION

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

    It never worked. It never plugged in correctly to the lighter plug. It was too much power and ruined my USB connection on my laptop. I have to hire a MAC tech to reset my settings.

    No, I would not recommend this to a friend
  • Rated 1 out of 5 stars

    Don’t buy

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

    Return date end date jun 27 it’s July 4 used it 3 times now sounds like popcorn when you plug it in.

    No, I would not recommend this to a friend
    • Brand response from Cedar Electronics Team
      Posted .

      We're sorry to hear about the issues you are having with your CPI500W inverter. For further assistance, please contact our customer support team at at 800-543-1608 M-F 9:00AM-5PM EST. Live Chat is also available from 10:00 AM-4:00 PM Eastern Time M-F on the Cobra website. Look for the chat icon at the lower bottom right side of the web pages. Thank you cedarelectronics-cobra

  • Rated 1 out of 5 stars

    Poorly built

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

    I have purchased two of these ans they died within an hour of being used. Stay away

    No, I would not recommend this to a friend
  • Rated 1 out of 5 stars

    It’s didn’t function at all

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

    It’s didn’t work I don’t recommend I didn’t even use one time just opened up the box got out it didn’t work

    No, I would not recommend this to a friend
    • Brand response from Cedar Electronics Team
      Posted .

      Please connect your Cobra POWER 500 Watt Power Inverter to an active 12VDC power source using one of the supplied DC input power cables. After the 12VDC power connection is established set the inverter power switch to the ON position to enable the AC outlets. cedarelectronics-cobra

  • Rated 1 out of 5 stars

    Did not work to specs

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

    Not true to specs in the slightest returned upon testing

    No, I would not recommend this to a friend
    • Brand response from Cedar Electronics Team
      Posted .

      We are sorry you were not completely satisfied. Our specs are true to what we advertise for the product. If you have any questions or concerns, please feel free to contact us at 800-543-1608, option 3 on the menu. cedarelectronics-cobra

  • Rated 1 out of 5 stars

    Disappointed with purchase

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

    This did not work as i expected it to and i returned it! Seemed very poorly made.

    No, I would not recommend this to a friend
    • Brand response from Cedar Electronics Team
      Posted .

      We regret to hear this. Our inverter is designed with durability in mind. We hope you will consider us for future purchases. cedarelectronics-cobra

  • Rated 1 out of 5 stars

    This item is terrible

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

    I would not recommend this product because the quality is very poor

    No, I would not recommend this to a friend
    • Brand response from Cedar Electronics Team
      Posted .

      Cobra maintains a high level of product quality across the product line up. Quality is of the highest priority for Cobra.

      Please provide more details of your quality experience to better help us understand the issue. We would appreciate your feedback by calling our customer support team at 800-543-1608. cedarelectronics-cobra

  • Rated 1 out of 5 stars

    Meh

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

    Returned it couldnt power ot it on no instructions

    No, I would not recommend this to a friend
    • Brand response from Cedar Electronics Team
      Posted .

      We regret to hear this. For assistance, we recommend contacting Cobra directly. We're here to help. cedarelectronics-cobra

  • Rated 1 out of 5 stars

    not bad to keep in car

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

    not quite useful and but good to keep in the car for many reason.

    No, I would not recommend this to a friend
    • Brand response from Cedar Electronics Team
      Posted .

      Can you please elaborate on your comment? If you have any questions on your Cobra power inverter we're here to help. cedarelectronics-cobra

  • Rated 1 out of 5 stars

    Not very durable

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

    Item broke on first day of use. Poor quality build, mostly plastic.

    No, I would not recommend this to a friend
    • Brand response from Cedar Electronics Team
      Posted .

      We regret to hear this. Our inverter is designed with durability in mind. Please contact Cobra directly if you need assistance. cedarelectronics-cobra

  • Rated 1 out of 5 stars

    Do not buy

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    Posted . Owned for 5 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Didn’t work out of the box. Tried on three different cars to make sure.

    No, I would not recommend this to a friend
    • Brand response from Cedar Electronics Team
      Posted .

      We’re sorry to hear about your experience. Please contact Cobra directly for assistance. cedarelectronics-cobra

  • Rated 1 out of 5 stars

    Didnt work

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

    I bought this item And exchanged it. Both did not work. Customer service was also not able to make it work

    No, I would not recommend this to a friend
    • Brand response from Cedar Electronics Team
      Posted .

      Sorry to hear you are having problems with the product. Cobra can help. Contact us at 800-543-1608 Mondy-Friday between 9AM and 5PM EST. cedarelectronics-cobra