Appliances Presidents’ Day SaleEnds 2/25. Limited quantities. No rainchecks.Shop now

Skip to contentGo to Product SearchGo to Footer
Gift Ideas
Main Content

Customer Ratings & Reviews

Your price for this item is $84.99

Customer reviews

Rating 4.7 out of 5 stars with 1780 reviews

Rating Filter

Rating by feature

  • Value

    Rating 4.6 out of 5 stars

  • Quality

    Rating 4.6 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 have good things to say about the 650VA Battery Back-Up System, especially its long battery life, overall performance, and ease of use. Many appreciate the reasonable price and adequate surge protection, as well as its convenient size and handy USB ports. Some customers have noted minor issues such as a slight humming noise and, in rare cases, random alarm activations. A few have mentioned its weight and isolated incidents of overheating.

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 62 Showing 1,221-1,240 of 1,780 reviews
  • Rated 4 out of 5 stars

    Good replacement UPS

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

    I recently had to replace one of our uninterruptible power supply units when it reached the end of its useful life. The previous UPS had begun beeping intermittently and unpredictably even though supplying power. This new UPS was the most comparable product to my expiring one. I would not operate computer equipment without a UPS.

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

    Great Backup Power

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Very happy with this purchase. We love the security of knowing our internet power is protected and has backup if the electricity goes out. Definitely would recommend.

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

    Ups

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    So far so good. Installed software on my computer.

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

    Rated 4 out of 5 stars

    So far so good

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    So far so good. Waiting to try with power failure.

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

    Tiger

    |
    |
    Posted . Owned for 2 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It give me peace of mind & keep my computer safe..

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

    CyberWower

    |
    |
    Posted . Owned for 2 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    One of the best purchased I made for my entertainment center, it is a must have specially if you want Wi-Fi while the power is out! got it on sale for $49.99

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

    Kept internet running during outage

    |
    |
    Posted . Owned for less than 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    First power outage the UPS worked fine to keep my Wi-Fi, router and fiber box running. Did not lose internet nor was it interrupted. I’d recommend turning the beep off, espically at night as it will wake you up.

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

    Hope it works!

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I haven't had to use this in its fullest capacity yet. I charged it up and it seems user friendly and functional. I had experience in using a different brand with similar functions and capabilities last year and liked how it worked. I'm just hoping this one proves to be the same.

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

    Battery back up

    |
    |
    Posted . Owned for 10 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This is a good product. it was great to have during stoms to ensure work electronics functioned

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

    Save important work

    |
    |
    Posted . Owned for 2 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great to insure important information not lost to power failure due to Florida weather espesialy during hurricane season

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

    Good buy.

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I like it. I have 3 of them in my house. They save me from outages.

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

    Battery power backup

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I haven’t loss power yet, I bought for wifi / internet backup!

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

    Satisfied customer

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    After old backups died needed to replace them. So far they are working fine. Will find out after a power failure which I hope is not in the near future.

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

    Reasonably priced UPS for basic backup needs

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Reasonably priced UPS. Using it to provide backup power for cable modem, wifi router, and laptop with external monitor. Have not tested how long it will last yet. Wish it had some display of battery status.

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

    Good Surge/Battery Protecto

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    My old one finally gave out. I was happy with the old one so I just replaced it with the same kind. Works well and 3asy to set up.

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

    CyberPower - 650VA Battery Backup

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This is a fantastic product and Best Buy had an excellent sale price. This is much better than just a surge strip.

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

    Great backup power

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

    Works great for us. We have power outages all the time and it keeps our internet and wi-fi working long enough that we don’t have to reset everything all the time.

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

    Did the job as needed

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

    Lots of power outages recently; kept losing my work. Bought two of these—one for the FIOS battery and one for the modem. Power went out, I worked right through it on the internet with no interruption.

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

    Good for back up

    |
    |
    Posted . Owned for 3 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I use this for my WiFi router so when the power goes out i still have WiFi and if it’s at night it beeps so I can get up and call the power company and report the power is out

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

    Good product

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Good product but didn’t work for what I initially intended it for which was to prevent my 3d printer from failing due to power spikes. Had to get one that was 1500va

    I would recommend this to a friend