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Customer Ratings & Reviews

Your price for this item is $45.99
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The comparable value price is $64.99

Customer reviews

Rating 4.7 out of 5 stars with 1032 reviews

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Rating by feature

  • Value

    Rating 4.5 out of 5 stars

  • Quality

    Rating 4.6 out of 5 stars

  • Ease of Use

    Rating 4.7 out of 5 stars

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97%would recommend to a friend

Customers are saying

Customers are delighted by the 650VA Battery Back-Up System's long battery life and reliable surge protection, praising its performance and ease of use. Many appreciate the system's value for the price and convenient size. While some find the unit somewhat heavy, the alarm feature has received mixed feedback.

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 21 Showing 401-420 of 1,032 reviews
  • Rated 4 out of 5 stars

    fine

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

    work great, light weight then other devices. great price, wish they all come in with display.

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

    Rated 5 out of 5 stars

    Very Good

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

    My previous one lasted well over 5 years and replaced again with this one. Computer recognized it right away and is able to shut down safely if the house power goes out.

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

    Rated 5 out of 5 stars

    My devices and data are protected.

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

    Only when the lights blink or the alarm clock beeps do I know a surge has occurred. My current data and files are protected.

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

    does what it does.

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

    have no complaints with this product it works, I guess that's what you expect.

    I would recommend this to a friend
  • Cons mentioned:
    Weight

    Rated 5 out of 5 stars

    Well suited for my needs

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

    I was replacing a UPS I brought from my office years ago. I did not need the capacity -- or the bulk and weight -- my old unit had. This UPS is, as Goldilocks said, 'just right'.

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

    Rated 5 out of 5 stars

    Continuously Reliable

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

    Whenever I've needed a battery back-up, I continue to buy same brand for its reliability. Avg. life is 4-5 years, mine have lasted upwards of 7 and continue to protect my computer.

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

    Nice size formy home office

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

    I needed a battery backup as we have a lot of thunderstorms in the summer. This is a perfect size for my hove officce and keeps my modem and router online as well as my large monitor.

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

    great for light load & charge phone when power out

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

    item works well for light load back-up and charging cell phone when there is a power outage

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

    Rated 4 out of 5 stars

    UPS, a must have.

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

    I keep all my electronics on UPS backup power/surge protection. I have several throughout the house both APC and Cyberpower. Best Buy recently had the Cyberpower 650 on sale, and since the specifications were almost identical to the APC, I chose the Cyberpower.

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

    Rated 5 out of 5 stars

    Reliable product

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

    I've had this Battery Backup for many years and works great. Good for PS5 or anything that can be damaged if power goes out.

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

    Good Value

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

    The Cyber Power battery backup is exactly as advertised. There are no fancy features, but it's great if you want a battery backup that's relatively small and gets out of your way.

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

    Good price for this voltage

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

    Solid apc and charges quickly. Best buy replaced first one that had one defective outlet.

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

    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.

    Easy setup. Plug in, and it goes to work. No problem at all. Use it for computer, phone and network devices. Power skips a beat, but you never know if not for room lights!

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

    Rated 5 out of 5 stars

    Power backup & protector

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

    This is the third backup power unit I have had. Each lasted well over the time expectancy and never failed. Purchased this newest one because of great previous experience.

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

    Excellent Home Computer System Backup

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

    I have an older model, of the same brand, that outlasted it's lifetime by several years. This newer model is an upgrade, it's lighter, and it stands upright, to conserve space.

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

    Rated 5 out of 5 stars

    Good back up

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

    I use this for my power lift recliner so I can get out of my chair when we have one of our weekly power outages. It also keeps my wireless phone system working.

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

    Rated 5 out of 5 stars

    Great UPS

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

    Great item for the office or home, if you don't uses one with your computer and network equipment you take a chance of lost data, equipment damage to equipment from surges.

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

    Rated 5 out of 5 stars

    Backup my power.

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

    Experience a serve storm which knock out power for 1 hour. The backup battery kept my work going during that time.

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

    Rated 4 out of 5 stars

    Does it's job

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

    This UPS is small... I have it in my home office simply to be able to complete work and shut down systems in the event of a power outage. Lost power one time since purchasing and it lasted around 30 minutes for a workstation and monitor.

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

    Rated 5 out of 5 stars

    Top Notch Purchase

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

    Easy setup and it allows me 4 battery backup slots so when my power blips , I don’t have to reboot my direct tv box or my router or my sound bar and my tv.

    I would recommend this to a friend