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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 14 Showing 261-280 of 1,023 reviews
  • Pros mentioned:
    Outlets

    Rated 5 out of 5 stars

    Great, lie flat UPS, but lacks USB charging out.

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

    Great, lie flat UPS, but lacks USB charging out. It has a lot of outlets, and the lie flat design makes it easy to see what is going on with all of the outlets. Some other brands have gone to taller designs, with less outlets, but have a couple of 2.4 Amp USB outlets. However, you can buy a twin 2.4 Amp charger fairly cheaply and plug it into one of the many outlets on this big UPS, so it is a minor point.

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

    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.

    I really like the fact that it had a lot of outlets compared to other models. Nice size also.

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

    great for the price

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

    great product for the price. These battery back up systems do have a lifespan but while they work they are great and they give you plenty of warning when they need to be replaced

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

    Rated 5 out of 5 stars

    Works as designed

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

    Easy to set up, has been reliable and works as designed. We use it on an iMac.

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

    Rated 5 out of 5 stars

    Great surge and backup system

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

    Bought this to replace a similar surge and backup system which I'd used for 9 years. Plenty of outlets, good battery backup time, and an unbeatable surge suppressor. First Class!!

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

    Rated 5 out of 5 stars

    Extra Outlets

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

    Perfect to use for extra outlets and nice knowing that they are protected from power spikes.

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

    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.

    Easy to install. Plenty of plugs for backup & surge protection. Would recommend.

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

    Perfect Battery back up system for office

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

    Great battery back up system for office, especially great with the 4 outlets that are on the outer edges to support a larger plug without covering another outlet.

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

    Rated 5 out of 5 stars

    Best Buy had the best price

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

    Great product for the price. More power and more outlets. Great price.

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

    Great for power supplies

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

    It's exactly what it's supposed to be. With the added bonus of having room for power supply bricks that would normally take up more than one plug by space alone.

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

    Rated 5 out of 5 stars

    good value, reasonably priced

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

    after loosing a days work because of a power failure followed by repeated electrical surges while the power company worked, i said enough was enough, and went looking for a fairly priced reasonable solution, starting at BestBuy, as I always do for tech stuff. Sure enough, found what i needed at a reasonable price, and if functions as i expected. I will refer the item to others.

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

    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.

    This thing is a little work horse. I have my TV, Xfinity receiver and internet modem plugged into it. Out power went off for a few minutes while I was watching TV and on the internet and there was no interruption at all. It kicked in instantly. I don't know how long it would have lasted since the power came back on after a few minutes. I think I'll plug a lamp into it too ;-)

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

    Rated 5 out of 5 stars

    Great Product and Great service

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

    I already had one of these that had been working great. When I needed another one it was a no-brainer what I wanted. The first one came from another big box store. No name but initials BB. I went online and found this one for $10 less and delivered to my door. I didn’t need to go to the store to pick it up. I wish I found this one the first time.

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

    Great so far!!!

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

    Was advised it's better to purchase a battery backup surge protector, I agreed. My first purchase of this type of product, so far I am very pleased, but haven't had any power outages yet =). It's heavy and needs ample room.

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

    Nice Price

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

    Works like a charm, only had it a month so far. Plenty of spots to plug in all my electronic's from my television to my computer and all the components too.

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

    Rated 5 out of 5 stars

    Great battery backup to save your electronics!

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

    Second one I buy for my electronic equipment. I still have my first one with my home computer and this second one now for my new office setup. Life saver when lights go out, everything on the battery backup stays on long enough to finish up and shutdown my computer. Also protects from voltage instability, and I've lost most computers to that, not anymore. Great buy!

    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.

    Great for home entertainment systems. Plug everything into the the outlets on this battery back up and everything is protected from power failure and surges.

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

    Good back up power.

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

    I use this to have power back up for my monitors and my printer so I can keep working when the power goes out. This UPS gets the job done.

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

    Good value and performance

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

    I am using this to protect a router and cable modem. So far it's worked quietly with no problems. Nice feature is a mute button if the power goes off.

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

    Rated 5 out of 5 stars

    Exactly what I needed

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

    Installed and working great. Good price. Takes up very little space.

    I would recommend this to a friend