Last Chance 48-Hour Flash SaleEnds Dec. 24. Limited quantities.Shop now

Skip to content
Gift Ideas
Main Content

Customer Ratings & Reviews

Your price for this item is $31.99
Clearance
The comparable value price is $44.99

Customer reviews

Rating 4.6 out of 5 stars with 1387 reviews

Rating Filter

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 46 Showing 901-920 of 1,387 reviews
  • Pros mentioned:
    Performance

    Rated 4 out of 5 stars

    decent item

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

    Good item enough to get the job done after a power outage.

    No, I would not recommend this to a friend
  • Rated 4 out of 5 stars

    Good product, but needed two

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

    I thought I could plug in my TV, DirecTV Genie 'server', Receiver, appleTV all in one unit, but I guess it was too much for the battery. I read that DirecTV DVR shouldn't go through UPS, just surge protection anyway. I would like to have a better idea of how much power certain items pull to understand what I can plug in

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

    Rated 4 out of 5 stars

    Easy setup right out of the box

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

    Easy setup right out of the box. Would recommend this.

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

    Rated 4 out of 5 stars

    Great for brown outs. Settings not lost.

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

    Priced right to maintain connectivity of connected devices.

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

    Have to charge first

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

    Bought this because I needed 2 and the store was out of the other APC brand in that size. Did not realize that this one has to be charged overnight before it can be used. Probably works for some but not good for my client that I had to go back to twice so that I could then go hook it up and hook their machine to it after it charged

    No, I would not recommend this to a friend
  • Pros mentioned:
    Performance

    Rated 4 out of 5 stars

    Great value

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

    Does what is supposed to, used daily with no issues

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

    Rated 4 out of 5 stars

    size is nice

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

    the battery back up worked great for us this winter.

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

    Great PC protection

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

    We have problems with power loss or blips where I am located. After a PC was ruined some protection was in order. The CyberPower battery backup system was selling at a good price in the Lake Jackson store. So far it has kept my PC from shutting down almost everyday. No problems.

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

    Rated 4 out of 5 stars

    Has worked great.

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

    Has worked great and low price for what I needed it for.

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

    ok

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

    if i plug 2 laptops into the batt port it set off the alarm. good for lower voltage stuff only!

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

    Excellent value

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

    Battery backups are pretty much mature technology. At this point, consumers simply expect them to work. The Cyberpower is no different. The sole reason for the 5 stars is that Cyberpower chooses to price their products more reasonably than the competition. There's no reason to spend more.

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

    Excellent Product

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

    This is my third CyberPower UPS. I needed one for the bedroom TV and cable box. CyberPower UPS' work great. User replaceable battery. Switches flawlessly. The other 2 are 5+ years old and I have had to replace the battery in both of them. Was easy to do and now both work like brand new UPS'.

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

    Rated 4 out of 5 stars

    Good battery

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

    Good consistent battery for regular computer usage

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

    This thing has saved my bacon many times.

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

    My very first iMac was rendered useless during a thunderstorm power outage a couple weeks after getting it. Before The replacement iMac came in I made sure to buy this battery backup and a few thunderstorms and and vacuuming accidents later the iMac still works great.

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

    Rated 4 out of 5 stars

    does the job

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

    This is a good reliable battery backup for desktops

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

    Must have for your 4K TV and sound system

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

    Living in the southwest, tornado ally, we do lose AC 3 or 4 times per year. This is a must item to have to protect your $1000+ 4K TV and $*** sound system. Problem is, surges on the AC lines with blowing winds that causes spilt second outages. The battery and surge covers this.

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

    Product is ok

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

    The last identical item, Same manufacturer only lasted me 3 yrs. For the price it's Ok.

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

    Stress relief for electronics!

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

    This is an absolute necessity for a home based business! You may lose your internet connection but you don't lose your document + everything that is open. One has plenty of time to complete/save all work and shutdown with out stressing yourself or your device.

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

    Seems fine

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

    Haven't had a true failure mode so far, but tested it by unplugging it for a while. Seems okay. Would prefer it were a little more informative about status - input voltage, charge percent, projected duration of charge at present load, etc - but I suppose even the cheapest LED would bump up the cost.

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

    Excellent Battery Backup

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

    Purchased and installed replacing another brand. I have used CyberPower in the past with much success. When I went to Best Buy and saw they had them, I was very pleased. The others I purchased online. I am very happy Best Buy carries them, and will purchase more as needed.

    I would recommend this to a friend