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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

Pros mentioned filter

Cons mentioned filter

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 25 Showing 481-500 of 1,387 reviews
  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    Great UPS for the money

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

    I purchased this device to replace an older Cyberpower unit that was five years old. The UPS satisfied the power demands of the equipment I have. We did have a power outage about a week after installation, and the system performed as expected.

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

    Rated 5 out of 5 stars

    Great for momentary power blips

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

    Hooked up to my TV/Cable set-top box as well as blu-ray and gaming systems. Handles momentary blips very well. For longer interruptions, it gives me time to power down my equipment safely.

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

    Rated 5 out of 5 stars

    Works Well

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

    I plug my home theater components into this and when there is a short power outage, it doesn't miss a beat. The components keep on playing. The spacing of the plugs is convenient and not too close together.

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

    CyberPower - 450VA Battery Back-Up System - Black

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

    Battery Back up system works just fine so far. No issues at all.

    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.

    this item works a expected. no issues. will see in the future whether it was needed or not.

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

    battery backup

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

    cant live without this in a modern world. you need to get one!

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

    Rated 5 out of 5 stars

    Easy to set up and use.

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

    We live in central Florida which is a lightning magnet. The back-up system includes 4 surge + battery outlets and 4 surge-only outlets. My printer said not to plug it into the battery side. So far it's functioned as advertised.

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

    Second one I've bought.

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

    This is the second one of these I've bought. I love it. Cheaper than fry's.

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

    Handles all the outlets

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

    Seems to shutdown the pc as it should. Battery life will be the final review

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

    Don't know yet

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

    I bought the item because of minor (flickering) power outages. Was having numerous outages up to the time of installation. Since the day I installed the unit, There has been not one thunderstorm in the area. Until that time, I can't rate the item fully. I JUST DON'T KNOW YET. I'll give it three stars for now.

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

    Rated 4 out of 5 stars

    Good Protection , Reasonably Priced

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

    Face it, computers and their peripheral devices don't like surprises. This battery backup protects against line surges and sudden power interruptions, giving you precious minutes to save your work and power down in an orderly fashion if the lights go out.

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

    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.

    This is the third Cyberpower UPS I have running in my home. The first two replaced an APC and a Belkin, which both crapped out. The two Cyberpower replacements have been running flawlessly for years... so I had no reservations about grabbing up the third one.

    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.

    This product came n handy and I’m glad I made the purchase

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

    super

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

    superb product proudly delivered to the market by bestbuy, keep it up!

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

    Rated 5 out of 5 stars

    Great battery backup for router

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

    I purchased this product to provide battery backup for my service providers fiber ONT and router. So far, I have had no issues. Additionally, it allows me to continue to have phone and internet service during a power outage.

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

    Needs warranty

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

    Does it's job but the fact that it can't be warranties worries me. Unlike Office Depot.

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

    Highly recommend.

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

    This seems like a must-have item for home offices (and really anyone).

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

    Battery back up

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

    Just what I was looking for as a backup for power outage

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

    good enough for my computer

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

    good enough for my computer andithasa good warrenty

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

    Works

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

    It works, haven't had to test the battery function yet.

    I would recommend this to a friend
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