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Customer Ratings & Reviews

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

Customer reviews

Rating 4.7 out of 5 stars with 1023 reviews

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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 22 Showing 421-440 of 1,023 reviews
  • Pros mentioned:
    Outlets

    Rated 5 out of 5 stars

    Excellent Product

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

    I have my stereo components, computer, printer, TV, cable box and Bluray player hooked up to this backup system. I love the fact that you have twelve outlets to use!

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

    Rated 4 out of 5 stars

    Good, but need specific alert on top of device

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

    Perfect for what we needed. Need to put a sticker on the top of the device to alert those who don't read the pamphlet first that laser printers and other named devices are not to be plugged into the Battery & Surge protected outlets. This warrants special attention to the consumer, in my opinion.

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

    Rated 5 out of 5 stars

    Good power supply

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

    I have this power backup hooked up to my satellite receiver box and TV. When the power flickers everything stays on, and don't have to wait for stuff to reset.

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

    Plenty of outlets

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

    I purchased this battery backup for several USB hard drives that I need to protest. It's compact size and the number of protected outlets make it ideal.

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

    Greaat Value

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

    Great value for 850va AVR battery that is almost 1/2 the size/weight of my old Cyberpower 900 unit. Electrical sockets very easy to access. Glad I found it at BestBuy.

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

    Rated 5 out of 5 stars

    Great

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

    Has saved me several times and would be worth the money to someone who has been thru the process of losing power and everything you were working on without notice.

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

    Good

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

    Good and reliable product ... serves its purpose for protection of my computer and equipment.

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

    Rated 5 out of 5 stars

    great battery backup

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

    since owning item have had a couple power outages lasting a minute or so. this performed as expected with plenty of time to shut down equipment.

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

    Rated 5 out of 5 stars

    Great unit at sweet price point

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

    This unit has lots of power plugins and a good amount of battery power for the price. The next significant improvement in specs will cost you a lot more money.

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

    Rated 5 out of 5 stars

    It works

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

    Tried another brand before and it didn't last. This is my second UPS from CyberPower, they seem to be making much better devices than other brands.

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

    Rated 5 out of 5 stars

    Works

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

    I purchased this to obviously give me power to important devices after a power outage. I haven't had an outage yet, but I fully anticipate it working as expected.

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

    OK

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

    The device works and is sufficent at maintaining my network equipment during power flickers.

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

    Rated 5 out of 5 stars

    Great battery back up.

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

    I have a computer that trade stocks on the New York Stock Exchange. I like having the back up battery so I can continue to trade when the power is out

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

    You always need a good Battery Back-up

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

    I always use a battery back-up for me cable box and wifi router to ensure there are no problems with power fluctuations. This a great product for that kind of use.

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

    Rated 5 out of 5 stars

    Battery Backup

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

    Unit does what is supposed to do and save equipment during a spike or loss of power. Works great using on my computer, monitors, printer and accessories.

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

    Kind of like buying insurance

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

    I guess buying a battery backup is kind of like buying insurance. You hope you never need it but if you do you'll be glad you have it! It was super easy to hook up.

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

    Rated 5 out of 5 stars

    Nice UPS for the money

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

    This was a great buy at a time I really didn't want t break the bank. There are others out there that are better but also cost much more. This was wonderful

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

    Rated 5 out of 5 stars

    A inexpensive power conditioner

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

    Some people buy a UPS just for the battery back-up but for some delicate equipment a power conditioner is what is needed. This is a good price for both.

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

    Surge & Battery Backup

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

    Often in Florida there are power outages, some brief and some longer. My mother-in-law is disabled and we were constantly reseting her internet and cable power to restore TV and communications. This device has worked for us and is now for my mother-in-law

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

    Rated 5 out of 5 stars

    Get one!

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

    This is the most overlooked purchase and can save you tons of money if power flicks or goes out completely you can shut your computer down properly. Get one

    I would recommend this to a friend
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