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Customer Ratings & Reviews

Your price for this item is $31.99
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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 47 Showing 921-940 of 1,387 reviews
  • Rated 4 out of 5 stars

    Good battery backup

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

    We purchased this to try and resolve an issue we were having with the garage door opener at our rental home (the owner is being resistant to replacing the door opener at this time). The door opener was too powerful for this battery. We ended up using it on one of the computers and it is doing a great job.

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

    It stays on

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

    This is probably the smallest battery backup I could buy. It needs to keep the computer powered for 15 seconds between the loss of power to the house and when the generator starts. It does that. If you need a longer protection time, get a bigger one.

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

    Great protection for the price

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

    I got it on sale and it works perfectly. It warned me that the outlet I had it plugged in was an issue so I had to plug it into another outlet. Gives plenty of time to shut off the computer when the power goes out just as long as it is plug in the battery back up.

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

    Nice size, easy setup

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

    This battery backup unit is just perfect for my outbuilding security system. It is not of such a size as to keep a big flat screen going for any length of time, but for less power-hungry situations works well. Setup was easy and visual signals show condition of charge.

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

    Trust me, you need this

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

    Battery backups are that extra bit of security and protection that really are worth their weight in gold. Not only do these regulate the power coming into your devices, but they also keep them powered on (for a short time). Really can't go wrong on this one.

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

    Good Backup

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

    I have been using this Backup for roughly three months and it has worked well. I like that you can turn off the 4 battery backup outlets with a button while the other 4 outlets remain on and all 8 are protected by the surge protector at all times.

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

    Not what I expected

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

    Pretty expensive, we couldn't connect our tv to it. Wasn't what I expected.

    No, I would not recommend this to a friend
  • Rated 3 out of 5 stars

    Great

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

    It must have for the house specially when you have a bunch of electronics

    I would recommend this to a friend
  • 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 purchased this to replace a worn out unit for my office computer. I realize it will not run my system for a long amount of time to shut down, but I got it for the intermittent power disruptions I sometimes have. For that purpose it works great.

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

    I would not be without this product.

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

    I am happy with this product we have lots of lighting strikes and which cause small power losses, every computer and TV is on a separate unit in my home. I do not have to worry about having to reset modems and Wi-Fi or loos expensive equipment.

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

    Powerful

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

    I needed to replace my backup power system so natural I went to best buy to purchase it.It was able to even take more items that my old one.it is now hooked up for my phone,computer,charge machine,ticket printer.it is perfect for my retailing needs

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

    Rated 3 out of 5 stars

    A good choice at price point.

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

    I purchased this one to replace an older Cyberpower that protected my system from a major power surge during a storm and the gave up the ghost. If it does as good as the first, the 40 dollars spent for this was great insurance.

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

    Does the job as advertised!

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

    The product does what it is meant to do. It works as advertised, although I have not yet had to check how the UPS works. No power cuts since I bought this unit. The thing I like most about this is that it is compact and does not take up too much space.

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

    Seems to do the job

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

    It's a little bulky, but I guess that is what is needed to provide the power needed. Due to desk configuration, it needs to sit on the desk, which is okay, but not great. You can't really test a product like this unless you have a major power outage, and who knows if that will happen!

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

    Great concept.

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

    I purchased this for my work computer. We typically use ups power back ups, but this was a much more affordable option. Since we have an on site generator, it would only have to supply power for a short duration. Worked good so far.

    I would recommend this to a friend
  • 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.

    My home power usually goes out once a week for a few seconds a day and I keep my computer on because I need to log into remotely during the day. Needless to say it goes off when the power goes off. Bought this and havent had a problem. Works great

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

    Good protection

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

    Does what it is suppose to do. I made the mistake of putting it in my bedroom and one night power went out and it was musical chairs in house since I have two more. Won't recommend having it where you sleep unless you don't mind the beeping

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

    Great product with phone line and battery backup

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

    This is a great product which has a phone line to send and receive faxes It rests flat on the floor and not likely to turn over and has many plugs for other items. It also has a battery back up to protect computers if the power goes out.

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

    Great for protecting digital electronics.

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

    In my recording studio my digital mixer, and computer are very expensive, electrical surges will easily damage these sensitive devices. But peace of mind is possible when the wattage of the devices is matched with capabilities of the battery backup.

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

    Fine for lower energy volume products

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

    Had to get something quick as the battery on my original died. Was able to put this into service while obtaining a replacement battery for the original. Repurposed the original to a new task. Won't be caught without these things in my world.

    I would recommend this to a friend
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