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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 52 Showing 1,021-1,040 of 1,387 reviews
  • Rated 5 out of 5 stars

    Makes me worry less during stormy weather.

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

    First thought was kind of bulky, but realized how great to have all the room on it for different sized plug ends. Plus like the battery back up.

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

    Set up was a little hard.

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

    Like all features for printer. Copies and prints near the top of page have a smear for about 2 inches near middle of page. Will call Best Buy to see what I should do.

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

    Works like I needed it to--reliable

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

    Bought this power supply to replace a power strip. Had plenty of plug-ins for my needs and the UPS support for TV and Playstation are a plus.

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

    Great for home items

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

    I purchased this battery backup to use for my personal computer, printer, phones and television. So far I have not had any problem with it.

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

    Seems to work as intended, and price was fair.

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

    I think I have "dirty electricity" in my house, with variations that sometimes knocked out my computer. Using this battery back-up device, my computer now stays on.

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

    An essential product.

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

    I have three of these in the house. A needed item to keep electronics running when the power goes out. No problems with any of them.

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

    Great Battery

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

    I trust cyberpower for all my batteries, they just work. However, I have had one or two die short of 3yrs. Could be power issues, however.

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

    Excellent Product

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

    I bought this one and fit perfect in my house, works great with my Desktop and my Laser Printer. It's the best purchase I made in the year.

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

    Very Good Product

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

    I've been using this battery back up system for years in the office and it works great. Would highly recommend this item to anyone.

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

    Easy Setup

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

    Information on the battery back-up that is provided is clear and concise - you just need to read and heed what it says!

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

    So far, so good

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

    No power failure yet, but I like the wide spaces between the outlets and how they're labeled clearly either just "surge" or "surge/battery".

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

    Works

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

    I purchased because we are always having 1/2 second power outages with storms which causes our security cameras to malfunction. This has solved the issue.

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

    Piece of mind at an adorable price

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

    Purchased for the parents wifi and phone service. It's nice to know that both will continue to work if the power goes out.

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

    works as expected

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

    I needed a power backup for my mother in law's Uverse. Wish they made something smaller that I could pick off the shelf.

    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.

    Needed a battery backup for my iMac. Checked out what was available at best but and this unit was the best for price and function.

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

    Works great

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

    I have several of these in my house for computers, network equipment, and Nest Cams. This UPS keeps them all up and running smoothly.

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

    So far so good

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

    I live in Florida and we get a lot of little power spikes with storms and sometimes just randomly so this helps a lot.

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

    Good Solid battery backup

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

    I have used many different UPS brand over the years. I Think Cyberpower is a very good brand and they seem to last a bit longer than other brands.

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

    Very good battery back-up

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

    The wall-outlet plug is designed at a 45 degree angle, which could be beneficial if you have need of a larger plug beneath it.

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

    Excelent unit good quality

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

    this is my second unit it lasted 6 years till the battery failed and found the same unit again and it works fine... thanks

    I would recommend this to a friend