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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 35 Showing 681-700 of 1,387 reviews
  • Pros mentioned:
    Surge protection

    Rated 5 out of 5 stars

    So far so great!

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

    So far I it's great! We had a few wind storms and I felt confident because everything is plugged into the backup.

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

    Rated 5 out of 5 stars

    Great work well during power spikes

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

    This works well during power spikes and surges so I keep my pc and xbox going. Good during lightning storms too.

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

    good for genny and/or fridge surges

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

    I live off the grid and get all power from solar,with running a small generator for backup. I run a small electric refrigerator and at times a dehumidifier,and when these start up there is always an initial surge/voltage drop which would make my dvd player turn off.i have now plugged in this cyberpower 450 to the tv and dvd player, and now i can watch dvds without this happening(dvd/tv turning off).unit has been working great for the few months i have had it.

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

    Rated 5 out of 5 stars

    Just what I needed

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

    It has the number of outlets I need. Good product, really good price and received in two days as promised

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

    Rated 5 out of 5 stars

    Very Good for a Single Computer

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

    I use it for a computer and a few other small users. It is performing great and the price is affordable.

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

    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.

    I charged for eight hours and plugged in. I was able to plug in my computer and peripherals. Works great!

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

    CyberPower are great products

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

    I had a electric transformer explode about 100 feet from my condo and lost all power. Then when power was restored,my new computer would not power up. I thought it was destroyed..Come to find out,my older CyberPower battery back up took the surge and damaged the socket where my computer and monitor were plugged in to. I went out and bought a new CyberPower back up and all is good. Saved my computer and I have confidence my new one will do the same.

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

    Rated 5 out of 5 stars

    Back up for me

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

    for the price, the is the back up we needed when the power goes out and we have time to shut down.

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

    Rated 4 out of 5 stars

    A good backup.

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

    A reasonably priced battery backup. It was tested recently in the storms we had, in Round Rock, and it performed as expected.

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

    Rated 5 out of 5 stars

    Love it

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

    It works great I love it plus you get about 35 mins of power after the power of the house goes out

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

    Rated 5 out of 5 stars

    Battery Backup works great.

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

    FL rain/lightning, so many spikes this has been a lifesaver for uninterrupted TV and internet.

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

    Rated 5 out of 5 stars

    It works great.

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

    We have our phone iPads and computers plugged into it for charging to keep them safe when we have storms.

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

    Rated 4 out of 5 stars

    It works.

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

    Reasonably simple to set up. Seems to be reliable. Beeped during recent power outage, prompting me to shut down computers.

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

    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.

    I have only owned this for a few weeks, but it works! My power went out for a few minutes and my electronics never missed a beat.

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

    Rated 5 out of 5 stars

    Excellent

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

    I use this to protect my wi-fi router, it works great and it is priced right. Very nice piece of equipment.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 4 out of 5 stars

    Nice & SImple UPS

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

    Bought as a small UPS for my server and router works great. Simple setup and ops makes it easy to use/maintain.

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

    Rated 5 out of 5 stars

    Replacement for older UPS

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

    Battery dies on older UPS. This only cost $5 less than a battery for the old one. Works great so far.

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

    Rated 5 out of 5 stars

    Great backup

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

    I bought this for a computer and the results are incredible don’t need to worry for power down.

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

    Rated 5 out of 5 stars

    good battery backup for clocks, small electronics.

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

    I use a few of these around the house to keep clocks, routers, cable boxes powered during short outages.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Easy to set up

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

    Easy to follow instructions for setup. I hardly know it's there- a feature you want in a product like this

    I would recommend this to a friend