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Customer Ratings & Reviews

Your price for this item is $31.99
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The comparable value price is $44.99

Customer reviews

Rating 4.6 out of 5 stars with 1387 reviews

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Rating by feature

  • Value

    Rating 3.9 out of 5 stars

  • Quality

    Rating 3.7 out of 5 stars

  • Ease of Use

    Rating 4.8 out of 5 stars

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95%would recommend to a friend

Customers are saying

Customers are positive about the 450VA Battery Back-Up System's long battery life, surge protection, and performance. Many also appreciate its affordable price, ease of use, and compact size, with several noting the convenient number of outlets. A small number of users mentioned a noticeable humming sound when the unit is running on battery power, and the lack of a USB connection was also cited as a drawback by a few customers.

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 50 Showing 981-1,000 of 1,387 reviews
  • Rated 4 out of 5 stars

    Great buy for a good price

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

    I normally go APC all the way but decided to try this slightly less expensive alternative this time. It's a solid unit that operates in complete silence and appears to have decent backup and power abilities.

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

    Works well

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

    Great for a router to keep your internet up for a few minutes in case of a power failure, won’t power anything for long but does it’s job

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

    Quality UPS

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

    We buy nothing but cyberpower ups systems, because price to performance is great. we have no bad units and these are the same. don't worry about purchasing these ups

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

    Gets the job done

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

    This is more coverage than you'll need for a typical desktop/monitor combo, but the lower current draw just means you get a few more minutes of power when the battery kicks in.

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

    Recommended electronic safety net

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

    We had one of these that saved a 27" Mac from getting fried by lightning. Fried the battery backup, but saved the much more expensive computer. Purchased another for replacement.

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

    Worked perfectly during outage.

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

    Recently purchased and had a power outage the next day. It worked perfectly and I was able to have plenty to shut down my computer and didn’t lose any of my work.

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

    Great price for Battery backup

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

    So far this battery has done good for me this version does not come with software management like the more expensive version do, I wish this one did too.

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

    Replacement UPS

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

    This is second unit of the same model that I've purchased. First one worked like a charm for 3 years before giving up during electrical storm, but saved my electronics.

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

    Great product.

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

    Best buy employees are very helpful and have a lot of product knowledge. When I make a purchase I have always found the in store people to be very helpful and knowledgeable.

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

    Perfect for the job

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

    I work on a computer and get paid by production. If the power goes out, I lose my product. This enabled me to save my work so I can finish it when the power is restored.

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

    Saved My Bacon... and PC Data

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

    I was using my computer in a place where backup power was needed, and I didn't have my primary battery backup. Best Buy to the rescue with this great deal.

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

    Great for momentary power outages

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

    Purchased this for my cable modem and Xfinity XI platform. When I experience momentary power blips I don;t have to wait until these devices "boot up" again.

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

    Great for small devices

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

    This UPS (uninterrupted power supply) is great for a wifi camera, router, etc. I would not use it on the computer because it doesn't have the load you need. I wish it came in red!

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

    Pleased 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.

    We use these as a backup for our power recliners in case of a power outage during storms. Haven't had any issues with them.

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

    Purchased to protect a/v equipment

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

    I needed this to help me organize and protect my A/V equipment for my entertainment system. I have power for needs for over six components and this will help organize all the power cords.

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

    Life savor

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

    Never ever get anything from Best buy without a plan... it will save you and your electronic... #ibelieveinGeeksquad... this is pefect for work and my computers

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

    Great compact form

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

    I like the small form factor factor, and that the alarm is easily turned off with a quick tap of the power button.

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

    Works fine

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

    I use a lot of Cyberpower UPS products and they seem to hold up very well . As always they are expensive...but not any more than competing brands...and sometimes less expensive.

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

    Perfect for short power outages.

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

    This really gave us peace of mind. We had a problem with a circuit breaker at our office and this small back up kept our [hones and computers up and running.

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

    What more can I say?

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

    The name speaks for itself. CyberPower has always been my choice for backup batteries - extremely professional and reliable products. #customerforlife

    I would recommend this to a friend