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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 70 Showing 1,381-1,387 of 1,387 reviews
  • Rated 5 out of 5 stars

    wonderful

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

    Have my Xbox 1 X / TV / Router / Modem all hooked to it. No problems.

    I would recommend this to a friend
  • Rated 1 out of 5 stars

    Stopped working

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

    This item stopped working after one year. I was using my computer that was connected to this Battery Backup when it failed and shut everything off. I lost some unsaved info and just caused a major headache. No thank you

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

    Decent back-up

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

    I just replaced this. It lasted 3 yrs 8 months which was 8 months after the warranty expired

    I would recommend this to a friend
  • Rated 1 out of 5 stars

    Dead from the start

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

    I'm going on my third replacement as of today. The original purchase and its next day replacement both failed to turn on even after nearly 24 hours of initial charging before use. The Battery plus Surge protection side of the UPS does not work at all while the Surge Protection only side works. Just talked to the Company Tech Rep who side that some units do fail out of the box. He didn't seem too surprised that I had two in a row. I've had other CyberPower devices without problems so I'm off to retrieve my third UPS in the hopes that this is a freak situation.

    I would recommend this to a friend
  • Rated 1 out of 5 stars

    Doesn't work from beginning.

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

    You buy these things with hope that you never have to use them. Now if you have to use them you expect them to work. I bought and picked up June 4, 2016 (less than 3 weeks ago). I plugged it in for the required 8 hours of charging. Then plugged in an aquarium pump. Low and behold this morning at 3 am we loose power. I thought great we will see if the backup battery works. Guess what, it doesn't. Thankfully I was up it I could've had a flood. I would not recommend this to anybody.

    No, I would not recommend this to a friend
  • Rated 1 out of 5 stars

    Horrible product

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

    Follow the instructions and the PC with a monitor would overload it in cause an alarm to go off and it would shut the power off to the system. This product is horrible do not waste your time or money on it.

    No, I would not recommend this to a friend
  • Rated 1 out of 5 stars

    Garbage and scam

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

    I purchased one and my tv was not working after a lightning storm and the company stated that the surge protector did not get surged and would not cover damages. Not recommended, buy a monster

    No, I would not recommend this to a friend