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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 48 Showing 941-960 of 1,023 reviews
  • Rated 5 out of 5 stars

    Great so far

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

    This is a repeat purchase. Love it. Would recommend.

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

    great quality for price

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

    this product is a very good buy and great quality.

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

    works fine

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

    works fine so far, seems like a heavy duty product

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

    Just what I needed

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

    Works as advertised, easier to get to reset button.

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

    Just what I needed.

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

    Bought to use as backup for garage door opener memory.

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

    Great for home setup

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

    Nice backup for my home setup for computer and TV.

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

    Works as expected

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

    Took this home and it works as expected. we had two short power outages, less than a minute, and there was no power interruption.

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

    Looking for some serious backup time

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

    I am tired of power outages, this is some insurance

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

    Good buy

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

    This was a good buy and was in stock at the store.

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

    Great price and Installs easily.

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

    Very competitive price and it also installs easily.

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

    Stabilizes power, lots of outlets, good cost...

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

    Due to a flaky power delivery, I experience power losses, brown outs, and its not good for my overloaded computers. So far so good.

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

    Works great

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

    I would definitely recommend this product. It has worked great in our application center which has high industrial ceilings.

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

    Seems good value

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

    Been using for over a month and so far, so good. The only criticism I have is that the USB port seems more limited than most.

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

    Peace of mind

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

    This product has given me great Peace of mind that I will be able to continue to operate my business when the power goes out.

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

    Can be a life saver

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    Posted . Owned for 1.5 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great back up battery for almost anything but stick to computer and charging items

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

    not bad

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

    I am using to power ooma and the internet modem. That way and in case of power outage, my in-laws can still use their phone.

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

    Good Battery Backup

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

    I just wish we could get one that could shut down the computer in case of power failure and unattended computer.

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

    These have saved us thousands of dollars

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

    Our company uses TONS of these units in harsh power environments and have more than paid for themselves.

    I would recommend this to a friend
  • 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.

    I purchased this item after our current one failed. It does the job and keeps things powered even in an outage.

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

    must have

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

    great product, is a life saver in florida with all the summer storms. i never have to worry about the spikes

    I would recommend this to a friend