Last-Minute SavingsLimited quantities.Shop now

Skip to content
Gift Ideas
Main Content

Customer Ratings & Reviews

Your price for this item is $62.99
Clearance
The comparable value price is $89.99

Customer reviews

Rating 4.7 out of 5 stars with 1023 reviews

Rating Filter

Rating by feature

  • Value

    Rating 4.6 out of 5 stars

  • Quality

    Rating 4.7 out of 5 stars

  • Ease of Use

    Rating 4.7 out of 5 stars

Pros mentioned filter

Cons mentioned filter

97%would recommend to a friend

Customers are saying

Customers express satisfaction with the 850VA Battery Back-Up System's long battery life, reliable performance, and effective surge protection. Many appreciate its reasonable price, ample outlets, and ease of use, finding it straightforward to set up and operate. The unit's size is also frequently praised as manageable. A minor drawback mentioned by some customers is the system's weight.

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 17 Showing 321-340 of 1,023 reviews
  • Pros mentioned:
    Outlets

    Rated 5 out of 5 stars

    Replacement for an older PC Battery Backup unit

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

    Replaced old PC Battery Backup unit. The new unit has twice as many outlets to plug devices into. Has room for oversized transformers if needed. Will be using new PC with external HD for backups. Also will be able to keep my Old PC on the same unit and still have extras for other things.

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

    Rated 5 out of 5 stars

    Great Deal for the Price

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

    I have had very good experiences with CyberPower with regards to their Battery BackUPS. This one has kept my home networking devices up and running through power outages without a hiccup. No more lost settings or resets needing to be done to get the hardware working again.

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

    Rated 5 out of 5 stars

    excellent and extremely useful

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

    This product has finally given me the peace of mind that I've been needing for a long time. I own a business and I've lost data and had my Internet crash constantly before purchasing this product. Since purchasing this product I have not had a single incident and that is very refreshing.

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

    Great

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

    I like the PC Interface/USB option with Windows 10. Allows you to "gracefully to shut down" your PC.

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

    Seems to work fine

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

    Tested it for a couple minutes by pulling the plug under a light load - seemed to be OK

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

    Rated 5 out of 5 stars

    Ample UPS for HDTV

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

    We have frequent storms and lightning, therefore blinks and outages. This unit is sufficient for our 42 in TV and the cable box, keeping it from losing the program schedule most of the time. The UPS is the third layer of shielding, behind a surge strip and a surge block.

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

    Perfect for my equimpment

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

    My first true UPS.easy to setup and begin using. Feel better having my TV and sound system secured.

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

    Great item to have in your house

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

    Allows more plugs and puts your mind at ease knowing it will back you up even when the power goes out.

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

    Rated 4 out of 5 stars

    So far, so good

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

    My rig pulls around 300watts max while under heavy load. This UPS will give me around 8 mins of extended time to shut down in a power loss situation. It does a good job of kicking in when needed and has given no problems. The monitoring software is actually quite good and easy to use. Overall I would recommend this to someone needing the added security of being able to shut down normally and protect their hardware from spikes and low/high voltage.

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

    love it

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

    Replaced an old unit. Love that this has 10 connectors since the old one only had 8. Works great.

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

    Rated 4 out of 5 stars

    Reasonable price

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

    Reasonable price, sufficient outlets, compact size. Just started using it; will see how it performs.

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

    It just works

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

    I really like all of the power plugs, I was able to eliminate 2 power bar extensions.

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

    Rated 5 out of 5 stars

    Works Great & Good Price

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

    This was tested soon after buying it. My computer, modem, 3 monitors, etc. stayed in standby for over an hour while I was away and the power went out. I'm sure that if I was using the computer, I would have enough time to properly shut it all down before draining the battery.

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

    Works as described

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

    We had a power outage a week after I purchased it. Power kicked on and I didn't lose any work.

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

    Worked perfect

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

    The first time the power went out it worked like it should and it powered down my cousin too

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

    Rated 5 out of 5 stars

    Works as advertised!

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

    We have a small office with needs to protect our servers and phone systems. I bought this UPS and another one to replace older units that began chirping. Plugged this one in and had no problems including a test to make sure it worked well. Very satisfied with this purchase.

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

    Rated 5 out of 5 stars

    Nice size and power

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

    Good layout allowing multiple device to be plugged in. Battery really can last longer than my old UPS I’m replacing. Really can’t have enough of these next to the TV, computer, or any device you don’t want to replace because of a power surge.

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

    New Way to Watch TV

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

    This is a much easier way to watch TV and listen to music. Just sit in a chair and tell Alexia what channel to watch or what music you want to hear. She will fulfil your request. She also provides great scenery as a screen saver on your TV.

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

    excellent product

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

    Would not live in FL without this battery operated shock protector. Works great every time.

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

    Rated 5 out of 5 stars

    Nice UPS Unit

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

    I've owned several CyberPower UPS and bought this one as a stand-in for another one I owned that developed a problem (replaced via advanced RMA with CyberPower, very good customer service experience) and it worked fine for a computer and a few peripherals.

    I would recommend this to a friend