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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

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 44 Showing 861-880 of 1,387 reviews
  • Pros mentioned:
    Price

    Rated 5 out of 5 stars

    Works as advertised

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

    This worked as I needed and it's great UPS for the money.

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

    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.

    This backup system works great and was very easy to set up.

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

    Rated 5 out of 5 stars

    Tower model. Good price for features.

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

    Compact and easy access to plugs. Replacement for old one.

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

    Rated 4 out of 5 stars

    works as it should

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

    Easy to use, battery already connected. Just charge and start using.

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

    Pretty good basic model (does what it does)

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

    I chose this to protect networking equipment during power surges and/or outages. This would not be the best choice for computers because there is no serial/USB port, and it is also pretty low wattage. Time will tell how long the battery lasts... I think I can get a 3rd party replacement battery for about 1/2 the cost of a new unit.

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

    Good uninterupted power for small loads

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

    I have a couple of these units, I use 1 for my TV and cable box, And another for my PC and router. The main reason I use them is my neighborhood has these short power loss periods at least once a week it seems and just a few seconds at a time, but long enough to cause everything to reboot. These units do a good job to keep the power from dropping out.

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

    Rated 5 out of 5 stars

    Quality product, great price.

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

    Good quality product, at a great price. very durable.

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

    Rated 5 out of 5 stars

    Just what I needed

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

    Had the features I wanted and at a good price point.

    I would recommend this to a friend
  • Rated 2 out of 5 stars

    CyberPower 450 battery backup - OK

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

    CyberPower 450 battery backup is OK, but i have never purchased a battery backup that would NOT work until it had been plugged in to 110V for 8 hours. Normally the product would work, but in case of power failure, it would not catch it because the batteries were not charged - that would be normal, but to not work at all until you manually charge the batteries in NOT good IMHO.

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

    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.

    Bought this for one of my employees and they love it.

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

    Rated 5 out of 5 stars

    Working as it should

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

    It seems to be working just fine. No problems so far.

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

    ok for low watts usage

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

    Was not compatible for our system. Have to download extensive information to use. Would recommend? Yes and No.

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

    Rated 5 out of 5 stars

    Good protection for equipments

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

    Great price for this surge protector. Bought three.

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

    Rated 5 out of 5 stars

    Battery

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

    Battery backup was easy to understand and put into use.

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

    Rated 4 out of 5 stars

    Easy to use

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

    Easy to set up and works great! Great brand name and built to last.

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

    Rated 5 out of 5 stars

    works fine

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

    plug and play straight from the box.. easy to install

    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.

    Works well, the outlets are accessible and it is not too bulky.

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

    Rated 4 out of 5 stars

    Lesson learned from lightning strike

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

    Bought this to better protect some good electronics from lightning

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

    Rated 3 out of 5 stars

    Annoying device

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

    I used this unit as backup power to my second security camera, when power was out for 2.5 hours, it continued to supply power to the camera which is good, but it has an annoying and loud beep every 30 seconds until electricity was restored. There was no button to disable the beep.

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

    Rated 4 out of 5 stars

    Overall Good Battery

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

    Great Price. Internal battery (no need to connect the terminals).

    I would recommend this to a friend