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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 33 Showing 641-660 of 1,387 reviews
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Simple and works well

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

    This unit replaced a similar one of another brand (which failed), and this one works well and was easy to set up and use.

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

    Rated 5 out of 5 stars

    The Cyberpower 450va gets 5 stars.

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

    I bought the Cyberpower 450va because it has 8 outlets total compared to the competition of only 6 outlets for about $10.00 cheaper.

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

    Rated 5 out of 5 stars

    Does the job very well

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

    I found it easy to connect and set up with all my wires, Had one time where electric went off and it kept the computer running

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

    Rated 5 out of 5 stars

    Worked great during thunderstorm

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

    Two Apple iMac connected to it and maintained operations during recent thunderstorm and short power outage and surge.

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

    Rated 5 out of 5 stars

    Right Product Right Price

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

    Has been in use for a few weeks. The problem with evaluating this product is that you don't know how well it works until it is needed,

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

    Rated 5 out of 5 stars

    It offers security for a very good price

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

    I bought it more than a year ago and I have not had any problems. It offers great security for a very good price.

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

    Rated 5 out of 5 stars

    Frequent lightening

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

    we live in area with frequent lightening, so we definitely need this. we used the battery to charge our phones during Irma.

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

    Rated 5 out of 5 stars

    Plenty of power

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

    This item was purchased for my sons new high end gaming PC. He loves it amd had protected his PC during several power outages.

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

    Rated 5 out of 5 stars

    Replacement Cyberpower

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

    This was a replacement unit. I had the other one for over 10 years. I would stay with this brand and buy another one if needed.

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

    Rated 4 out of 5 stars

    Best insurance available for surges

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

    it only takes once loosing your work to say never again to a power outage. Have a great experience with these and the price has always been competitive

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

    Excellent Backup Power

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

    My last battery backup died so I'm very happy that this one was available the day I needed it. Much lighter than the last one I had.

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

    Rated 3 out of 5 stars

    buzz

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

    this made a noise when setting up and had to up plug and plug it back in for it to stop once done works great

    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 setup. Plug in to outlet to let it charge then plug in your appliance. No cracking the case to activate the battery

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

    Rated 5 out of 5 stars

    Extra piece of mind..

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

    Bought this as a back up for tv and DVR in family room.. haven't had to see it in action yet but it's there just in case.

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

    Rated 5 out of 5 stars

    It does the job

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

    I like this battery backup system, I use one with battery backup for my home PC and modem, and at work, I have another similar one.

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

    Rated 5 out of 5 stars

    Lifesaver

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

    Where i live every week or so the lights go out so this baby has saved my pc and other equipment multiple times. I love it

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

    Undecided

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

    Not sure if the battery backup part works or if my pc has a powersupply issue. But the buzzer part works when the breaker does go off or detects some other power issue is detected

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

    Rated 5 out of 5 stars

    Works just like it says

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

    Not sure what I can say about this product other than it works like it says! Haven't had any problems yet and great price.

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

    Rated 4 out of 5 stars

    Works as Intended

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

    Works as intended. Very helpful during spikes and surges so my laptop, external drive and router don't reset (and prevent problems and loss of data).

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

    Rated 5 out of 5 stars

    Save you from electrical malfunctions

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

    There was an electrical issue due to lightning and storms. My TV, DVR and computer were safe thanks to this surge protector.

    I would recommend this to a friend
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