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Customer Ratings & Reviews

Customer reviews

Rating 4.7 out of 5 stars with 1962 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 6 Showing 101-120 of 1,962 reviews
  • Pros mentioned:
    Performance

    Rated 5 out of 5 stars

    Great UPS for the price

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

    i am a firm believer that anyone using a desktop computer should have it plugged into a UPS. especially when you can get one of this quality for so cheap. Will save hours of work in the case of an untimely power outage

    I would recommend this to a friend
  • Pros mentioned:
    Surge protection

    Rated 5 out of 5 stars

    Great

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

    Read the instructions and you’ll be fine. I bought to keep my internet up and running during surges/momentary power outages and these work fine. I use the surge-protected outlets for other expensive items, but I have one of these for my modem on my demarcation wall and another on my primary router. So far so good.

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

    Rated 5 out of 5 stars

    Works

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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 performing as advertised. It has already proved itself in a power outage. I have this one powering my modem and router among some other items. I’m planning on buying another one for my main desktop.

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

    Rated 5 out of 5 stars

    Very Nice

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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 advertised. Turned power off to change a switch and no interruptions

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

    Rated 5 out of 5 stars

    Battery backup

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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. I have my mom's lift chair plugged into it in case of a power outage.

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

    Rated 5 out of 5 stars

    Good value.

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

    Good UPS at a great price. Open box was avail able making this a real good deal.

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

    Rated 5 out of 5 stars

    Reliable and Effective

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

    Second one that I purchased. Very good price level. Very reliable and effective. Don’t have to worry about my equipment being damaged by surgers or power outages.

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

    Rated 5 out of 5 stars

    Great

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

    Reliable, great price... Enough outlets for your sound equipment and TV.

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

    Rated 5 out of 5 stars

    Battery Backup

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

    Exactly what I was looking for - some outlets with battery backup and others with surge protection. Previous on lasted 12 years.

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

    Rated 5 out of 5 stars

    Ty geek squad

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

    Thank god the guys at the store knew what I needed and it worked perfect to replace what lightning took away!

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

    Rated 5 out of 5 stars

    Good for short term power loss/surge supression

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

    My old UPS died, and it was time for a new one. This has the same rating but is less than half the physical size. But the important thing is that it works. It keeps my home office equipment running through the power blinks that are common where I live. (Above ground electric service with lots of overhanging limbs that do not seem to get trimmed often enough). I'm not sure exactly how long it lasts, I have not tested that, with my work laptop, docking station and two monitors. But I know it has lasted the 10 minutes I waited before I decided to shut things down.

    I would recommend this to a friend
  • Pros mentioned:
    Price, Size

    Rated 5 out of 5 stars

    Compact UPS

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

    Basic features. Easy to use. Good value. Compact size.

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

    Rated 5 out of 5 stars

    Peace of mind

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

    I feel far safer knowing I am protected from surges and knowing I have a backup battery. This item is peace of mind.

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

    Rated 4 out of 5 stars

    great value, small, compact power source protect.

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

    This CyberPower 450VA Battery Back-Up System is small enough to fit almost anywhere, and safely expands how many outlets are available. Four backed up "supported" and four surge protected outlets. I've looked everywhere and you can't beat the value of this little black box, in fact I've purchased several and have installed them throughout.

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

    Rated 5 out of 5 stars

    for those who value there tech

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

    i bought this not just for a surge protector but it also has a backup battery i plug my new computer into it when i am using it to charge it an if the power goes out it will prevent it from getting a electric surge damage an the battery will have enough power to let me safely turn my computer off

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

    Rated 5 out of 5 stars

    Easy to use

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

    Easy. To set up works like a charm. Low-cost does the job

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

    Rated 5 out of 5 stars

    Love this UPS back up.

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

    Great UPS, it has saved me several times in brownouts.

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

    Rated 5 out of 5 stars

    Great

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

    I would definitely recommend because I don’t really need a big huge one and when I saw this, it was nice and small

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

    Good quality and price

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

    Does everything it should and leaves a lot of time for me to properly turn off devices.

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

    Rated 5 out of 5 stars

    Great UPS to power my ONT when power is out.

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    Posted . Owned for 11 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I purchased this to power my ONT whenever we have power outages and it's perfect for what i bought it for. I only have the Optical Network Terminal plugged into it and it powers it for well over qan hour with no issue. It's quite small and is easy to hide as well.

    I would recommend this to a friend
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