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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 27 Showing 521-540 of 1,387 reviews
  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    It is OK

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

    This item it is OK, i plug here my tv and sound bar, in case the light goes out i have time enough to turn it off, im a soccer fan and once the light wen't off at the exact time my team score, so it was worth it.

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

    Rated 4 out of 5 stars

    Replacement unit

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

    I bought this battery back surge protector to replace the one that got zapped by lightning . The unit is reasonably priced and works great. the only way it would have gotten 5 stars is if the plug layout was better for big rectangular plugs.

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

    Works Well.

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

    Works well. Wish it would last a little longer. But for the price its good.

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

    Inexpensive UPS

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

    I prefer APC but this works in a pinch. Good number of outlets.

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

    Great for home office

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

    I purchased the same surge protector as I had before. Never had any issues but it finally died on me after quite a few yrs of having the first one. Plenty of outlets to plug in to for what I need.

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

    Rated 5 out of 5 stars

    So...

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

    I've purchased this particular surge protector and power back up once before. It has always proved to be quite reliable and works just as the advertising on the packaging indicates. It is a good value for the price.

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

    Rated 5 out of 5 stars

    Three's a charm

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

    This is the third 450VA I've purchased from CyberPower, the first unit lasted 8 years guarding our big screen TVs and the second is still protecting my PC & flat screen in my office after about 6 years.

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

    Rated 5 out of 5 stars

    Over 30 minutes of power!

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

    I have a PC and monitor plugged into one of these. After a 24 hour charge, I decided to see how it would perform if the power was cut (unplugging the wire). It gave me roughly 30 minutes of power. Very satisfied!

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

    Rated 4 out of 5 stars

    Item works as expected.

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

    Item works as expected. This is your basic Battery Backup System. Make sure you know what size you are looking for when you are looking for one. The lower the VA the less amount of time you will have back up for. The box makes this very clear.

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

    Good Entry Level UPS

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

    I needed a very basic UPS/ Battery Back up. The price is good for this use.

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

    great product

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

    This is a great product that matches every need plus some

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

    Great Protection

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

    Inexpensive way to protect your equipment. Plan to buy more.

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

    Several Outlets Are Great

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

    This accommodates all devices and is very sturdy for use.

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

    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 bought it for my tv because of multiple split second power outages in my condo complex that was starting to cause my tv to malfunction. Since I bought this battery backup, all of those issues are gone.

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

    Rated 5 out of 5 stars

    Doesn't disappoint

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

    Got several of these for my business. One is used with my Avaya phone system. During power outages it will keep the phones and modems up and running long enough to forward calls to an alternate office.

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

    good price

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

    Good price. Very good quality. Recomended fornpc, dvt,erc.

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

    Rated 5 out of 5 stars

    Great Product

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

    This works very good in Florida with all the storms and lightening in this area. When taking on line college classes it is good to know you have time to save and send your class work when power fails.

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

    Rated 5 out of 5 stars

    Extra security when power outages or surges happen

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

    I trust this will work when we have a power surge or outage. Since I've had this backup system, we've not had any power problems so I can't verify how well it will work. Just hope it does if I ever need it!

    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.

    This battery backup system is just what we needed to get our elevator working again. It is even physically a bit smaller than the unit we replaced, so it leaves more room in our electronics cabinet.

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

    Great battery

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

    I love these batteries. They are so good for computers.

    I would recommend this to a friend