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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

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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 19 Showing 361-380 of 1,023 reviews
  • Rated 5 out of 5 stars

    Great

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

    These are so good that I bought two one for myself and one for my son

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

    Rated 5 out of 5 stars

    Better than Monster..

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

    I am an avid audio buff. I hesitated on purchasing another power strip and as leaning toward a panamax power conditioner. At the price and having voltage regulator, I chose Cyberpower. Battery backup and everything. This thing rocks!

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

    Great price. Low profile.

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

    This UPS fit a tight spot and met my need for a low cost AVR device.

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

    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.

    This is my second one I've purchased for my home security DVR, the other is for my computer. They are conservatively rated and will actually power longer then they say, can also take them camping and use as a power source.

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

    Rated 5 out of 5 stars

    Just your basic UPS

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

    Bought it to replace a previous model which was a least 5+ years old. Only have one computer, modem, WAP, and a monitor connected to it. Was on sale when purchased. Hopefully it will last a long time. Works so far. No complaints yet.

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

    Good Battery Back-Up System

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

    This is a good Battery Back-Up System. It does everything it should do.

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

    Great product

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

    Keeps my home computer and printer safe from power outs

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

    Great!

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

    Works great - nice combo of battery and lots of plugs.

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

    Easy to use

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

    Good quality clerk was helpful in explaing operation

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

    Great tool

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

    A must have in case of rolling black out and small enough to hide.

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

    We get hit by lightning a lot and this is great.

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

    Works great, protected my computer and printer from a direct hit.

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

    Rated 5 out of 5 stars

    Works like it's suppose too.

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

    Came fully charged which I wasn't expecting which was kinda nice. Plugged everything in and the software picked up just as fast as my older unit. Picked this one for upgrade (it had more ports) I'm happy with it.

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

    is good

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

    is good but i need something more stronger or better

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

    Dependable

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

    I have 4 of these and wouldn't recommend any other.

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

    Rated 5 out of 5 stars

    Much better option

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

    So far this unit has worked flawlessly handling a tv, PS4, XBOX One, and steroid receiver. Getting three more to replace APC units that seem to keep going to overload status with the same equipment.

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

    Rated 4 out of 5 stars

    Excellent design

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

    This UPS has an excellent design and worked as advertised. If I were buying another UPS, I might consider upgrading for one that has a longer charge time. This one lasted about 4 or 5 hours to keep my router up during an extended power outage from a hurricane. I love that it has multiple plugs, so I could also have charged my cell and other devices.

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

    Rated 4 out of 5 stars

    Works fine

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

    Should do the job I want it to. Have not had an outage yet. Had good specs and was a good value. To prospective buyers, there are differences between the 650, 750, 850 and 900 and VA versions. The bigger number does not necessarily reflect more protection or capacity. Some alternate versions don't have the same joules protection.

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

    Rated 4 out of 5 stars

    Good price for battery backup

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

    This was a good price and had enough outlets for everything I needed.

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

    Works great

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

    Haven't had any problems with this. It seems to work great.

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

    Great

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

    This was one of the best battery backup ever! Go pick one up.

    I would recommend this to a friend