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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 28 Showing 541-560 of 1,387 reviews
  • Rated 4 out of 5 stars

    Good

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

    I enjoy the discount that comes with the program. I like the special offer

    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.

    Exceptional backup in case of a power failure or blackout. Fantastic backup for your computer if you have important work or information that you could not backup due to a power failure at your home.

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

    Rated 5 out of 5 stars

    Works

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

    Purchased to isolate a video monitoring system. It was installed as per directions and hs cintinued operating since. We have no interruptions since installation so do not know if it provides ups service

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

    good product

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

    The price was affordable and had a good length of cord.

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

    Affordable small UPS

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

    This was a Cyberpower 450 Watt UPS and like the brand.

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

    Nice UPS

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

    Nice product for the price. I think you’ll think so too!

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

    Rated 5 out of 5 stars

    Does the job

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

    After a couple of power outages, which can play havoc to the X1 cable box and modem, I bought the battery backup to ensure that I can power down both properly instead of abruptly. So far so good.

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

    Rated 5 out of 5 stars

    It saved the day when I most needed it.

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

    Battery Backup System worked the next day I bought it. The electricity went out and I heard the CyberPower's beeping system and was able to save the work I was doing. So glad I got this.

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

    Great

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

    Works great no issues power went out help up perfect

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

    Great Buy @ Best Buy

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

    Needed it Bought it, Good Buy. Used at a Fire House

    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.

    THE PRODUCT WORKS GREAT AND IS VERY EASY TO INSTALL

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

    UPS Keeps Things Up When Power Drops

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

    I picked this UPS up because, quite frankly, it cost a bit less than the APC alternative. And, for what it is, the device works fine. However, as a long time APC owner, I have some reservations: 1) The battery doesn't appear to be accessible. It's plugged in from the get-go. 2) The battery is not replaceable. So, when this unit dies, you have to buy a whole new unit as opposed to a new battery. It seems that in the long run this could lead to a battery wearing down quicker and to a more expensive replacement. But, I typically just buy replacement UPS devices anyways so this isn't a huge problem. We've had several storms lately and the device has kept up the network media devices I plugged into it. I can't speak to its longevity, but for network devices it seems like a good fit.

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

    Rated 5 out of 5 stars

    Nice Back-Up System

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

    I use this on my computer in case of power outages. It has always done exactly what is supposed to do and keep my computer running long enough to shut it down properly.

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

    Rated 5 out of 5 stars

    Better than Expected!

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

    Had APC Backup before and it went out in less than a year. Knew I did NOT want another one! Giving Cyberpower a try and so far, I'm very pleased. It has saved me multiple times. It costs less too!

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

    Rated 5 out of 5 stars

    peace of mind

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

    The battery outlets provide security in case of power failure and the other outlets provide surge protection. Connected my PC to the battery outlets and the monitor to the surge outlet.

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

    Rated 4 out of 5 stars

    UPS nicely priced

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

    Was in the market for a UPS for my entertainment system after a few too many power outages in a week. Got a decent review and was cheaper than a comparable APC UPS. Has held up during at least one additional outage.

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

    Budget Battery backup

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

    Budget Battery backup. Won't auto shut down computer. No cabling.

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

    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 purchase this unit to shutdown my PC on power outages. I lost my hard drive on power outage took a while to get everything back. Worth the cost for the protection.

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

    Rated 5 out of 5 stars

    Great power supply backup

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

    I had my last APC backup for several years and a brown out took it out. I did a bit of research and found this unit to be very reasonably priced and had the power I need for a small home office

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

    Rated 5 out of 5 stars

    Stays connected with power loss.

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

    I was having issues with the power blinking off and the computer turning off in the middle of a webinar and no problems losing connection since I have had the battery back up.

    I would recommend this to a friend