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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 17 Showing 321-340 of 1,387 reviews
  • 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.

    I have bought many of these over the years at different ratings. Have had only one die on me due to a horrible power surge. While it did not survive all of my equipment attached to it did. Would recommend.

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

    Rated 5 out of 5 stars

    Good battery backup

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

    Works like you expect it to and lasts well. Well-spaced ports for ease of use. Clearly marked ports that use the battery.

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

    Perfect for workstations.

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

    I use these at all of our stores and they are wall mountable. Keeps it off the floor and out of the way of peoples feet.

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

    Rated 5 out of 5 stars

    Does it's job

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

    Bought this after we had suffered a lightening strike at house. The electricians have been working here and turning power on and off each day. It has done it's job and held up during the off times. Back-up keeps computer going. When it gets near the end of the power supply (more than 2 hours), the alarm starts sounding and then the dog gets going because "something is wrong" and I think it actually speeds the electricians up to get the power back on. We have been very satisfied with this.

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

    Excellent for small item backup

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

    This works great for me protecting a part of my house security system from power outages. My last unprotected outage the power clicked on and off so many times that it reset my light control hub making it unusable.

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

    Great price!

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

    I like this one because I have no issues connecting(plugging) devices. I always had trouble with plugs interfering with one another. Good spacing on the outlets.

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

    Rated 5 out of 5 stars

    Good value

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

    This model appeared to have the best value based on the cost, power rating and amount of surge protection. I bought it to be able to keep a drive online in case of a power failure. Even if I lose an internet connection temporarily, once the power comes back up the drive is still operating and re-establishes an internet connection. That means when I am traveling I will always have access to my media and data even if there has been a power failure at home in my absence.

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

    Good value for it's capacity

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

    Best price/performance I could find from anybody. Only negative is that the power cord is much too short, probably will require a heavy duty extension to install out of sight. Otherwise, good outlet selection and spacing. Easy to install.

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

    Rated 4 out of 5 stars

    Does what it should

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

    I use this one for the larger electronics, TV, Xbox , router, Roku box etc. It has also made it through 2 power outages due to thunderstorms without blowing out any of my stuff. The last one I had was Rocket fish brand, I will NEVER purchase anything Rocket fish brand again. I lost a 55 inch TV, Amazon Dot and Router during a storm in the middle of the night. The Rocket Fish surge protector was only a year and a half old but only had a year of coverage. So this one has already proved it's worth to me.

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

    Rated 5 out of 5 stars

    GREAT BATTERY BACK-UP

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

    GREAT battery back-up system that features 8 surge-protected outlets to guard against power spikes , GOOD PRICE.

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

    moderate cost for moderate protection

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

    I didn't want to spend a ton of money, nor did I want to purchase the cheapest unit. I am glad there was a mid-price item for so much protection as provided by my item of choice.

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

    Rated 5 out of 5 stars

    Product works great.

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

    The UPS keeps things running just as it should. I purchased it when it was on sale so I got it for a good price.

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

    Rated 5 out of 5 stars

    A must for sudden power failures

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    Posted . Owned for more than 2 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    We've all had it happen. You're working hard on the computer, have documents open, external drives plugged in...and BOOM! A power failure takes it all away, and potentially corrupts any external drives that aren't properly ejected. This will prevent that, and give you the time to save your work and turn everything off properly. It usually lasts about 10-15 minutes, which works fine for me.

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

    Rated 5 out of 5 stars

    Great for external HDDs

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

    I am using this to run a couple of external HDDs and an Echo Dot. This product does exactly what its suppose to do. It provides me with a few minutes to properly shut down external HDDs in case of power loss as well as protect against dirty power/power surges. CyberPower is right up there with APC for home UPS's in my opinion. I have the 1500vr/900watt CyberPower UPS I use for my server and TV. Love this brand and have not been let down yet.

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

    Rated 5 out of 5 stars

    Saves my bacon several times a year!

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

    Living in the north woods, power failures are frequent. Working from a home office makes them even more disruptive. I have an emergency generator, but it takes 10-seconds to kick in. The CyberPower fills that gap beautifully. It carries the load of a ton of equipment for that brief but critical few seconds without any hesitation. So impressive, I now have the protecting several TVs and our satellite system. Nice!

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

    Great protection for expensive electronics

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

    This is one of the best purchases I have ever made. There are a lot of electrical spikes in my area and this takes care of all of them. It is so much easier to replace one of these than your TV or PC.

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

    Rated 5 out of 5 stars

    In a pinch these did the trick

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

    I found myself in a pinch that two of my computers were without a battery backup. These happened to show up on a Daily Deal so I snagged two of them and immediately got to work on setting them up. Once I got the batteries fully charged I ran a simulated power surge and power outage and both computers and monitors were just fine. One of the computers running an additional peripheral was also uninterrupted. I'd suggest these.

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

    Rated 5 out of 5 stars

    Great protection for electronics!

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

    This works great with my TiVo and the tv, if the power goes out I don't miss any part of anything recording and I could use the tv sparingly if necessary to catch some of the news if the power was out for a long time, I would say if the power was completely out, it would probably last 30min - 1 hour if you tried to watch tv with this battery backup. Great device that adds great protection to your electronics!

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

    Rated 5 out of 5 stars

    Works like a charm

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

    Had a power outage after buying this ups and it performed as it should. Light weight. Would recommend.

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

    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.

    It accommodates all sizes and shapes of power plugs and power supplies. Easy to use and reliable

    I would recommend this to a friend