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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 8 Showing 141-160 of 1,023 reviews
  • Pros mentioned:
    Price

    Rated 5 out of 5 stars

    Solid Product

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

    Good quality and competitive price. Will definitely buy again from Bestbuy!!!!

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

    Great small ups

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

    Great to combat power blips and surges. Small enough to put under a desk out of the way.

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

    Rated 5 out of 5 stars

    Excellent product for the affordable price

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

    I'm very pleased with this product. I especially love the number of outlets it offers.

    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.

    I have purchased a few of these to replace the old ones and it has been working fine.

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

    easy set up, works great

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

    Very easy to set up and monitoring software is good. Lots of accessible plug ins.

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

    Rated 5 out of 5 stars

    Really good!

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

    Has been working really well. Please get it. It's definitely the best one out there

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

    Rated 5 out of 5 stars

    bought one then went and bought 2 more

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

    works excellent for what I need has been tested with with a recent power failure

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

    Rated 3 out of 5 stars

    Basic Level of Battery Back Up & Surge Protection

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

    If you are looking to get a basic level of battery back-up and surge protection for a decent price, this is a good product. Works well.

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

    Rated 5 out of 5 stars

    Excellent back up system

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

    This item is more advanced and works better than the Cyber Power I bought earlier.

    I would recommend this to a friend
  • 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.

    This model was mid priced and black color. Simple to use right out of the box.

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

    Perfect for small business

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

    I bought this since my prior one died and needed one that not only served my need but only is small enough for the area that I had. It was easy to install and fast charge.

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

    Rated 5 out of 5 stars

    Very reliable

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

    I would definitely recommend this product, reliable and affordable.

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

    Rated 5 out of 5 stars

    Reliable!

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

    The CyberPower - 850VA Battery Back-Up System - Black is reliable!

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

    Great APU

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

    Easy to use and setup. I highly recommend this piece of equipment.

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

    Rated 5 out of 5 stars

    Good surge protector & battery backup

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

    I am using this for my cable modem and wireless router so I can still have internet access during brief power outages. I haven't had any power outages yet but the surge protection gives piece of mind and there are plenty of outlets in the unit.

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

    Rated 5 out of 5 stars

    Working very well.

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

    Because of wherewe live this equipment was necessary. It has worked out well.

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

    Rated 5 out of 5 stars

    excellent back up

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

    so far this battery backup is the best performing brand i have ever purchased.

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

    Rated 5 out of 5 stars

    It works great

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

    It works great. We have all the plugs being used and haven't had a problem

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

    Rated 5 out of 5 stars

    Great value!

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

    For the money, it is a great value! I use it to protect my server and just few days ago the power went out, but my server did not know it at all! A must today for TV's, Laptops and PC's alike! Best protection money can buy!

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

    Rated 5 out of 5 stars

    Great Performance at Reasonable Price

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

    Perfect for my needs. Computer, printer, modem, router, huge monitor and NAS. Will run all for 17 minutes with printer in standby. More than enough time to get generator up when necessary. Cheaper than most others also.

    I would recommend this to a friend