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Customer Ratings & Reviews

Your price for this item is $45.99
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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 15 Showing 281-300 of 1,032 reviews
  • Pros mentioned:
    Performance

    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.

    Use this product to protect my iMac computer! Lightning storm knocked out power while I was using computer and the battery back-up allowed me to save my work and shut down my computer without any issues. When power was restored, I simply hit the reset button to be back on normal power. Worked Great!

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

    Rated 5 out of 5 stars

    Best price I found and works the way it should

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

    A battery is not the most exciting purchase ever but the fact that it's not attracting my attention speaks well for it. I got a good price here - the best I found, it arrived on time - and - it works. It does what it is supposed to do without my having to think about it. So - five stars!

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

    Works to keep computer running.

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

    Keeps my computer running during power outage. Like that you can check voltage from your power company.

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

    Great for Occassional Short Term Power Outages

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

    I chose this particular CyberPower 650Va model because of the capacity or simply how long it power my computer, monitor and external drives. Certainly there are less expensive models but at the compromise of Power On Time after an electrical outage. This one seems to be an excellent blend of cost verses external power failure. Nothing could be worse than a electrical failure or "bump" while saving your files; then loosing everything.

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

    Rated 5 out of 5 stars

    A required accessory

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

    This is replacing one that gave at least 10 good years of service that just got old. Cyberpower units have saved my data several times when we experienced power failures. I have been able to save any documents and shut down safely. The alarm will also let you know if there is a power failure at night.

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

    Easy for a beginner

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

    I knew I needed a surge protection and my geeky brother suggested I needed a continuous power supply as well. Research only confused the issue as I was supposed to figure the power needs of my equipment while all I wanted to know was what unit would be large enough and yet economical. Best Buy helped with the information on-line about all power supplies and in the store, the employee in the computer department helped me decide on this unit. So far so good as I no longer have had problems with dips in electric levels which had occurred almost daily, sometimes shutting my computer off without warning. Why didn't I get a unit years ago before my desktop was fried and my data all but lost!!!

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

    excellent printer

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

    Excellent product quality printer low cost printer cartridges. Would refer a friend to this product with out worry.

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

    Rated 4 out of 5 stars

    Simple product

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

    Easy to install, instructions were very easy to read and enough back up for my computer.

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

    Rated 3 out of 5 stars

    Seems to be working as expected

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

    Needed this because of some power issues. So far it's doing it's job and protecting my system from surges and unexpected shut downs

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

    good purchase

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

    My old back up system finally quit, and I needed a new one pretty quick. This one fit my needs just right.

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

    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.

    I bought this battery backup for my daughter's laptop that she uses at home for college work. I have always bought APC products in the past and was curious about the Cyberpower. It's a great UPS with a good feature set. It was easy to set up and the monitoring software is very well done.

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

    Rated 5 out of 5 stars

    Great backup battery

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

    I ordered this for my new computer, and we had a power flicker just a few hours after I set it up! It worked perfectly. There is software included that will let you check the status of the battery and tell the unit what to do if it loses power (such as turn off the computer). Very useful!

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

    great products

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

    best buy usually only carries the best products so i don't have to worry about what I get.

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

    Needs more power

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

    Is hooked to my computer and printer with the credit card payment reader. When I print the battery screams at me. So it can’t handle all three items.

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

    Rated 5 out of 5 stars

    Just what we needed for power glitches.

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

    This was purchased for a desktop pc and flat screen TV. We live in the country and experience numerous short power outages. They only last for a few seconds, but enough to shut off the pc and tv. This keeps both going until the power is back on. It's a good purchase!

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

    Rated 5 out of 5 stars

    Job well done

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

    So, we live in an older home mixed with modern day amenities. We have a big TV and so many gaming consoles and other electronics. So during a storm, when all the powers went out, this kept everything going for an additional 10 minutes before we had to manually power them off.

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

    Rated 5 out of 5 stars

    A very important item to have for all electronics

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

    I have a UPS for each of my computers including my laptops. I believe having a UPS has saved my systems many time, we actually have lost other electrical equipment that was not attached to a UPS. I replace all my UPSs every two years or sooner. They have never let me down.

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

    Rated 5 out of 5 stars

    Best Buy (sic) for the money

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

    If you need more than a couple of minutes of power than this is the UPS for you. It works great, lasts about thirty minutes with a desktop computer attached or with a TV and stereo. You can expect about four years of use before the battery no longer takes a charge.

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

    Rated 5 out of 5 stars

    good surge protection & back up for home computer

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

    I needed new surge protection and back up for my desk top computer. I had no idea what to buy, so I compared the products. The box for this product was very informative and basically walked me through the important things to consider to make my purchase. It has worked out perfectly

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

    Rated 5 out of 5 stars

    Perfect

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

    I bought this UPS to run my NVR receiver to prevent any power spikes. I've used CyberPower units before and really like the PowerPanel Personal software app that can be used to monitor the UPS. Great unit, great price. I totally recommend this product.

    I would recommend this to a friend