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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 10 Showing 181-200 of 1,387 reviews
  • Pros mentioned:
    Price

    Rated 5 out of 5 stars

    Reliable

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

    works perfectly for what I need. The price is very reasonable. Great for back up!

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

    Rated 5 out of 5 stars

    You shouldn't be without backup

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

    I bought three of these and have protected three computers and 3 television sets.

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

    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.

    product was easy to setup and use I have used this brand before and had long lasting results

    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.

    For the money you can’t go wrong. This battery back-up has performed as needed.

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

    Rated 5 out of 5 stars

    Solved my problem

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

    I had purchased one before and it worked great for 5 years...now need a new one

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

    Rated 4 out of 5 stars

    CyberPower - 450VA Battery Back-Up System

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

    This is the battery I purchase when I can't find any on sale. It's an even better purchase if they go on sale :)

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

    Rated 5 out of 5 stars

    Great back-up system

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

    I bought this one to replace a 10-year-old APC unit that had been knocked out in an electrical storm. The CyberPower unit, although significantly less expensive than the APC one, performs just as well. No dead outlets. Good to go for another decade, I hope!

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

    Good Basic Back up

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

    Good back up for basic use. Keeps my equipment up and running even when the rolling brown outs from FPL happen. Helps prevent surge when power blips constantly from storms and power outages. Don't expect to stay up for a long period of time. This is a basic unit and does its job, but in case of long term outage, you'll be able to turn the equipment off correctly without loss of data or damage to whatever is connected.

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

    Rated 5 out of 5 stars

    Good Backup for Limited Needs

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

    Bought this device to hang in the garage and use for a backup device for my AT&T broadband service. Works great and is simple and straightforward to use. Already have benefited from the fact that it did its job in a situation where i lost power. Cost is great too.

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

    Rated 5 out of 5 stars

    Great Protector

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

    Works great it was a great bye would definitely get one again if I had another big TV set up.

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

    Rated 5 out of 5 stars

    Good receptacle layout

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

    I looked at several units before settling on this one. The price was attractive and it's small enough to fit under my desk easily. I also picked it because the layout of the receptacles are spaced nicely allowing me to plug in a lot of different sized plugs side by side.

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

    Good UPS

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

    I have had good luck with this brand of UPS but I have also had the battery go out way to soon. I will usually just buy what is on sale that week as a replacement. Anyway, so far it is working just fine. The only disappointment with cyberpower is when the box is sealed and I cannot replace the battery myself.

    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.

    We purchased three of these battery back-up systems to be able to have both desktops and our DVR and TV all plugged into one. In our area, we're prone to having the power blink off and right back on a few seconds later. Super annoying anyway, even more so when you have to wait for everything to restart afterwards. We have had a couple of blinks since getting them and they have worked great. No complaints here.

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

    Just the right size

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

    I needed a battery backup that would fit in a tight spot, this fit perfect.

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

    Great UPS

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

    Great UPS, conveniently fits in needed space and plenty of outlets to use.

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

    Well worth it.........

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

    I like the fact that it has surge protected outlets as well as "designated" battery "back up" outlets. My previous one didn't and there was a power surge in the house and it blew out my 2 year old 45", 3D Flat Screen TV. The new one has already done it's job at least once since buying it. Great product, reasonably priced.

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

    Rated 5 out of 5 stars

    Very good unit

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

    I use this UPS to protect against surges and power spikes, that are common in my area.

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

    Rated 5 out of 5 stars

    Seems to work fine

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

    Works fine with power surges thus far. Have yet to need the battery backup function.

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

    Rated 5 out of 5 stars

    450 Battery Back up

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

    Very good for computer back up in case of power failure. Easy hook up and works great.

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

    Rated 5 out of 5 stars

    Necessity!

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

    Great product! Combining a surge protector with a battery backup is a must have. If power goes out while your working on a spreadsheet or any other work/school project, you have enough time to save the project before you lose all power.

    I would recommend this to a friend