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$84.99

Customer reviews

Rating 4.7 out of 5 stars with 1791 reviews

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Rating by feature

  • Value

    Rating 4.6 out of 5 stars

  • Quality

    Rating 4.7 out of 5 stars

  • Ease of Use

    Rating 4.8 out of 5 stars

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Cons mentioned filter

95%would recommend to a friend

Customers are saying

Customers have good things to say about the 650VA Battery Back-Up System, especially its long battery life, overall performance, and ease of use. Many appreciate the reasonable price and adequate surge protection, as well as its convenient size and handy USB ports. Some customers have noted minor issues such as a slight humming noise and, in rare cases, random alarm activations. A few have mentioned its weight and isolated incidents of overheating.

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 90 Showing 1,781-1,791 of 1,791 reviews
  • Rated 5 out of 5 stars

    So far so good

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

    Currently, it seems like it does the trick only had it for about a month.

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

    cyber power

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

    great service !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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

    CyberPower give that extra confidence

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

    I have three of them for computers, WI-FI and for desk lamp. Works fine.

    I would recommend this to a friend
  • Rated 3 out of 5 stars

    Only good for 3 years

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

    Yes, after warranty period this UPS started acting up. It would make a loud beep sound alerting it’s already stopped working and then you have to reset it to work again then after a few weeks same scenario so reset again, problem is if your away from home for a while and it started to act up, your home will be offline until you get back.

    No, I would not recommend this to a friend
  • Rated 4 out of 5 stars

    works as expected - no issues

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

    Our existing UPS died suddenly and this was easy to secure, pick up and install. Works as expected without any issues.

    I would recommend this to a friend
  • Rated 3 out of 5 stars

    Backup

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

    I really need more Battery time, make sure to check draw and capacity

    I would recommend this to a friend
    • Brand response from TechSupport
      Posted .

      There are units that can provide more runtime. If you have any questions please reach out to our support team at 877-297-6937 and we'd be happy to assist. We hope to hear from you! CyberPower

  • Rated 1 out of 5 stars

    Does not keep PC up during outage

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

    Does not keep PC running whenever there's an outage. Even the brief dips in power. The whole point of a UPC is keep things up so you can shutdown gracefully. The only things plugged into the battery backup side are the PC and monitor so it's not an overload,

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

      Our team can find solutions or provide the information you need for success. Don’t hesitate to reach out to Tech Support at 1.877.297.6937 so we can troubleshoot the issue. Our UPS systems are used by many to power their home office's and can assure you that we have product that suits your needs. CyberPower

  • Rated 1 out of 5 stars

    piece of junk - broken button

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

    I purchased this at Best Buy in OKC on 7/31/18, for a non-profit. It was 2 weeks before we were able to install it. When we did, the power button slipped into the unit - so it couldn't be turned on or off. Yesterday, I took it back to Best Buy on 8/21/18 to exchange it for a different brand. Imagine my shock when they wouldn't refund it - because it had been over 15 days since the purchase! Never used, never even powered up because it was defective from the start. Two other units (different model, same brand) I purchased at the same time had flimsy power buttons, too. Would never buy again or recommend to others. And I am very disappointed in Best Buy.

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

    More like cyber-NO-power

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

    Hooked up just my TV and PlayStation and the overload alert went off. Yes it’s plugged into a grounded outlet… will only run my tv…. Going back to Best Buy.

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

      Thank you for your feedback regarding the CyberPower 650VA Battery Back-Up System. I apologize for the inconvenience you experienced with the overload alert.

      For reference, the power requirements are approximately:
      PlayStation 5: around 200-250 watts under typical load.
      Typical Flat Screen TV: approximately 100-400 watts, depending on the size and model.

      When combined, these devices can exceed the capacity of the 650VA unit, which is rated for about 390 watts. We recommend not exceeding 80% of the UPS capacity to prevent overload, which means a safe operating limit of around 312 watts for this unit.

      Please consider using a unit with a higher capacity. We appreciate your input and hope you find a solution that works better for your setup. CyberPower

  • Rated 1 out of 5 stars

    Doesn't work

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

    Bought this for my elderly mother so she can get out of the electrical chair she sleeps in. Followed instructions, and plugged it into battery side, power went out and it didn't work. Numerous calls to customer service yields no assistance at all. Do NOT buy this product

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

      Our support team is available Monday through Friday from 7AM-6PM CST and can be reached 877.297.6937. Tickets can also be submitted on the CyberPower Systems website if you prefer communication by email. Please reach out to us at your convenience and we'd be more than happy to help. We look forward to hearing from you! CyberPower

  • Pros mentioned:
    Surge protection

    Rated 1 out of 5 stars

    Doesn't work after 5 months

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

    Bought this in September as a back up to my expensive sewing machine for the surge protection. We had a power outage, it started beeping and the back up battery would not work. After the power came back on it still will not work. Tried the reset button and still didnt work.

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

      Hello froggiep,

      Thank you for providing your feedback on this product. This model of UPS can support a max load on battery of 360 watts or 3 amps, some sewing machines may overload the UPS due to how much power they consume. We'd be happy to help you trouble shoot this issue and provide more information on the product, you can contact our tech support at 1-877-297-6937 (press 1).