Refund Refresh 4-Day SaleEnds Monday. Limited quantities. No rainchecks.Shop now

Skip to contentGo to Product Search
Main Content

Customer Ratings & Reviews

$69.98
Save $15.01
Comp. Value: $84.99

Customer reviews

Rating 4.7 out of 5 stars with 1782 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

95%
would recommend
to a friend
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 25 Showing 481-500 of 1,782 reviews
  • Rated 5 out of 5 stars

    Great features. Love the battery back up!

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

    This plug bar is designed well to accommodate plugs with different widths. The battery back up is extremely valuable during the many power outages we have in SOuth Florida.

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

    Good UPS

    |
    |
    Posted . Owned for 1.5 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    So far the unit has performed as it should without any issues. Hopefully the battery lasts many more years before needs replacement.

    I would recommend this to a friend
    • Brand response from TechSupport
      Posted .

      Glad to hear things are going well with the Cyber Power unit. Remember, the SX650U comes with a 3 year warranty so if you do run into any issues, reach out to our support team and we'd be happy to help. Thank you for submitting your review! CyberPower

  • Rated 5 out of 5 stars

    I guess it’s working

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

    The whole point of the unit is to power your electronics and stop a surge. This is all I turn on so if it has worked I don’t know but my stuff still works. So I guess it’s working.

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

    Works great

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

    I plugged in all my valuable devices and so far has proven effective as the power at my place kept flickering one day due to strong winds. Thinking of buying one more.

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

    Very good small UPS

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

    This small UPS does what we need for our powered reclining sofa set. Small enough to fit under without losing the surge protection and battery back up we were seeking.

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

    Freind of backups

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

    Great backup protecting our electronics. I have used these for any years.

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

    Good at what it was built for.

    |
    |
    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Bought this as a replacement backup for my network equipment. Power doesn't go out often, but when it does, this prevents the router from having to reboot.

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

    UPS & surge protection

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

    This is a great product. I need UPS for some of my devices, but having the ability to have both UPS and surge protection in a small profile device is great!!

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

    Would definitely recommend.

    |
    |
    Posted . Owned for 4 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Excellent product. Works great. I have two printers, one laptop, one phone charger, and two lamps plugged into it so far, and haven't had any problems.

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

    Battery back up

    |
    |
    Posted . Owned for 4 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This battery backup is exactly what I needed. It helps to protect my computer form a surge of electric. the personnel was very helpful in recommending it to me.

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

    Great product

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

    Exactly what I was looking for in a battery backup power supply.

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

    Very useful UPS

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

    Purchased this to use for my tv and fiber modem. While I know this isn’t one of those very large UPS that will run a 65 in big screen tv for a very long time, I wanted it mainly for in the event of a power outage while watching tv, it will give me time to properly shut off my tv. So with recent power outages, I have to say that this thing holds its own in power support. It gave me up to 7 min of run time with my big screen on and the internet modem/router plug in during that outage. I obviously wanted to test how long I had just as a curiosity but that time is more than enough time to shut down my tv properly AND still get about 35 to 45 min if run time in my internet modem/router.

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

    Works as advertised

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

    Works as advertised. I really hate that you can't permanently turn off the no-power beep. We lose power quite a bit, and once the power goes out, this thing beeps super loud, to the point it interrupts sleep at night. We know the power is out, we can't do anything about the power being out, we don't need this thing beeping super loud to constantly remind us every few seconds. You can turn the bell off, but you have to re-turn it off every time you lose power.

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

    Good for basic applications

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

    This UPS gave about 12 minutes of run time when i had a 34inch monitor and microATX computer tower with 700W power supply connected to it. I decided to use it for my router only. It estimates to have enough backup power that will run the router for 375-550 minutes.

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

    Easy set up.

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

    Plenty of outlets include 4 battery and surge protected outlets + 4 full-time surge protection outlets + 2 USB charging ports. User-friendly software to control and monitor a UPS system.

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

    Awesome Battery

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

    Got this item on sale. It was well worth it. It even has usb port plugins. It is nice and compactible and not real bulky. You can even pount to the wall instead of having on floor if you want to.

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

    battery back up

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

    I have not had it fail and it does a good job powering my businesses' station.

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

    Beyond my expectations

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

    I really like it, and works great for that price I recommend it

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

    Owner

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

    Amazing project. Longer battery life than listed on the product.

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

    Excellent item

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

    This CyberPower Back-up System replaced an APC unit that had run out its life. This new system was easy to install and connect the computers, etc. All is working great.

    I would recommend this to a friend