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Customer Ratings & Reviews

$64.99

Customer reviews

Rating 4.7 out of 5 stars with 1973 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

Pros mentioned filter

Cons mentioned filter

95%would recommend to a friend

Customers are saying

Customers commend the 450VA Battery Back-Up System for its battery life, performance, compact size, surge protection, affordable price, and ease of use. Many appreciate the generous amount of outlets available. However, some customers have noted the absence of a USB port, while others have mentioned concerns about noise, weight, and alarm issues.

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 92 Showing 1,821-1,840 of 1,973 reviews
  • Rated 4 out of 5 stars

    Great power protector

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

    With this power protection, I do not worry about my electronics being safe .

    I would recommend this to a friend
  • Cons mentioned:
    Alarm

    Rated 1 out of 5 stars

    DO NOT BUY THIS PRODUCT, IT DOES NOT WORK

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

    Unfortunately a product like this only gets tested when the power goes out, and that didn't happen before I could determine that it didn't work. I needed it to be able to support a home link system for the 30 seconds it takes for my generator to kick on in an outage. That happened today. All it did was sound a high pitched alarm, and my device shut off with no power to it. Worse, I had to turn off the alarm, whose sole purpose apparently was to announce that it doesn't work. And now, it is ten days past the point where I can return this piece of garbage to Best Buy for a refund. Don't get taken like I did, DO NOT BUY THIS THING.

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

      Thank you for sharing your experience with the unit. This isn’t a normal experience and we’d like to gather more information to assist in troubleshooting and/or providing warranty service. Please reach out to us at 877.297.6937 option 1 for tech support and we’d be more than happy to provide assistance. We hope we hear from you! CyberPower

  • Rated 4 out of 5 stars

    Power

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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 ok. Just not exactly what I expected. But it’s ok

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Does the Job

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

    Simple small unit for short term backup. Wish it did have a USB interface.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Good UPS

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

    This is a good UPS, but it does not seem to last as long as an APC UPS.

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

    Great battery backup

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

    Will know when we loose power if it works or not. Have yet to be tested.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    love it

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

    all my troubles are over now clear power statics free,wow

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Good little UPS

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

    Nice sized little UPS. 2 - UPS sockets, 4 - normal sockets.

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

    hit or miss.

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

    hit or miss. we've purchased many of these for work and some of them hold up when the lights go out and others - for no known reason - don't hold up. will have to look to replace with higher end models this coming year.

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

    Working great so far

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

    We'll see how it performs when we have another power outage.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Great

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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.

    I like this battery back-up cyber power is working good.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Decent UPS

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

    This UPS is adequate and serves the purpose. Good quality.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    works great

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

    just needed a UPS with surge suppression. good price

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

    Rated 4 out of 5 stars

    New Backup Power

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

    So far, so good. What can I say? I plugged it in, connected the various bits of equipment and everything works fine.

    I would recommend this to a friend
  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    Does what it supposed to

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

    Keeps my internet on for work calls duuring power surges

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Great item

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

    We bought this item for our nephew and he loves it.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Works great

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

    Does its job. No software to tell pc to shut down though

    I would recommend this to a friend
  • Rated 1 out of 5 stars

    Cyber Power warranty isn't worth the digital space

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

    Bought two. They both died same time about 5 months after install. Cyber Power wants me to pay to ship them for replacement. The cost of shipping even at the cheapest would be incredibly expensive. The end result would cause the units base price to sky rocket. AVOID CYBER POWER AT ALL COST They are garbage and the warranty basically useless if you factor in paying to ship to them. Also, research shows they last less longer than their competitors I would give negative zeros if possible

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

      Hello Clyrate, We're sorry to hear about your recent experience with your products and would like the opportunity to assist you. Please feel free to call: (877) 297-6937 for assistance. Thank you for your review. CyberPower

  • Pros mentioned:
    Performance

    Rated 5 out of 5 stars

    Excellent

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

    Excellent, Excellent, Excellent, Excellent, Excellent

    I would recommend this to a friend
  • Rated 1 out of 5 stars

    Didn't work as intended

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

    I bought this back in October of 2024 to protect my computer tower in the event we lost power again. It turned on and from what i could tell the power light was on and my computer is now protected. Well, just 2 days ago the power went out and the house went dark and so did my computer tower. The battery backup did not work at all. It turned off too. I was very surprised because best buys products usually work just fine. But not this. I am very disappointed.

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

      Hello! Take care to ensure you are not overloading the battery and only place critical items like the tower and a single monitor in the Battery supported outlets, and move all non-critical items to the Surge Side. I would encourage you to reach out to our tech support at https://www.cyberpowersystems.com/support/submit-a-support-ticket/ or calling us at 1.877.297.6937 so we can fully diagnose the issue as well as offer product warranty if need be. Have a good day! CyberPower