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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

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 38 Showing 741-760 of 1,023 reviews
  • Pros mentioned:
    Performance

    Rated 4 out of 5 stars

    Works as intended

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

    Product works likes it's supposed to and what it was intended for.

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

    Good Protection

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

    I have been using this brand for many years. It does the job but the battery does wear out. That is why I bought this one. Could have replaced the battery but I wanted more outlets than the old one had.

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

    Good backup

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

    This product works well with my DVR.. I f the power goes out it keeps recording my show. I really like the mute button for the alarm when power goes out. Other similar products don't have this feature.

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

    Product works well.

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

    My previous battery backup by CYBERPower lasted 11 years for me. That was the main reason why I purchased another CYBERPower. This new unit has an additional two outlets compared to the old one.

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

    Worked much better than expected!

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

    Purchased a similar product 2 months before and it died. Company replaced rather than refunding $. This handles the power requirements of the system I'm using much better. I think you will like it greatly.

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

    Keeps my electronics running perfect.

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

    I've been using this UPS for a while and my TV is running perfect. Even during the storms if I lost electricity my TV stills working. I lost one tv during a lighting, not planning to do it again.

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

    Power & Surge works great

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

    Unit has good selection of outlets and backup power works during power outage quirks from AEP> The software is not all that friendly but seems to give popup menus when there is a problem with the unit.

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

    Good value battery backup

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

    Bought this to replace a previous Cyber Power UPS that had worked well for many years. Battery had lost capacity and new unit price was comparable to replacement battery. Auto shutdown software is a nice feature.

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

    Rated 4 out of 5 stars

    Great power supply for the price.

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

    Bought this for my desktop computer. Definateky worth the price.

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

    Works as Expected

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

    We chose this UPS/surge protector for our office because it had sufficient amperage and outlets to operate out network equipment without additional extension cords to accommodate power adapter plugs.

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

    Rated 4 out of 5 stars

    Great Product

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

    Well made, reliable, no issues, have used for many years

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

    lets wait and see

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

    I used this battery back up for my office and so far so good!

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

    The best battery back up system that I have owned

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

    Every once in awhile the power turns off then on again where I live for no reason and this battery backup helps to keep my computer and modem and internet phone running with out any problems....

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

    Rated 4 out of 5 stars

    SEEMED TO WORK

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

    DIDN'T USE THIS VERY MUCH BUT IT SEEMED TO WORK FINE

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

    Great External Hard Drive

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

    This has been great so far. Easy to hook up and get going.

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

    backup

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

    This is an great additional to my electronic family

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

    Works awesome

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

    I plugged it in and it works awesome. Very quiet; just don't plug Laser Printers or for that matter any printers into the "protected" outlets; only use the Surge or use a wall outlet.

    I would recommend this to a friend
  • Cons mentioned:
    Weight

    Rated 4 out of 5 stars

    UPS

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

    Much lighter than the previous heavy UPS it replaced.

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

    Great Backup Battery for your Electronic Equipment

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

    I use this product to keep my computer running and monitor running at all times. Also a great way to keep your voltage stable going to your electronic equipment. No complaints so far

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

    Repeat buyer

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

    I've purchased CyberPower products before and had always been impressed. I've been very happy with their products and especially like that you can buy generic replacement batteries.

    I would recommend this to a friend