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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 11 Showing 201-220 of 1,023 reviews
  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    Blocky Battery But Does Job Well

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

    With the weather turning to winter the power grid can be less than reliable. With a business to run and sudden power loss leading to hours of lost productivity a big powerful battery is needed. This one does the job, providing about 5 to 10 minutes of power to keep a high performance PC/monitor combo going to allow for a controlled shut down. It should be noted this battery is a huge hefty block and takes up quite a bit of space. Cyberpower and APC are your two main choices at BBY. I went with Cyberpower based on wide ranging internet reviews that stated their batteries tend to outperform their quoted stats.

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

    Good small fridge

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

    The fridge is a good small fridge, it fits in a very small area and hold the perfect amount of water and soda.

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

    Unit works great, it's a must to protect equipment

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

    Unit woks great, I have an HP SSF desktop, a 25 inch HP monitor, a phone, and a credit card machine all plugged into it. I recommend one on all equipment, I have one on all of my TV's and DVR's at home so if the power goes out for a couple minutes my shows continue to record.

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

    Rated 5 out of 5 stars

    Excellent Value

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

    Perfect value and protection for my home living room electronics, it even powers my network attached storage and shuts it down in the event of a power failure.

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

    Excellent UPS for a Great Price

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

    CyberPower is continually surprising me with their product line. APC has been my go to brand for everything power related for the past 20 years but I switched to CyberPower recently and now am getting better products and customer service. Very happy with this UPS!

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

    Rated 5 out of 5 stars

    Quality and value!

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

    Purchased this on sale. Performs as expected. We consider battery back ups to be very important and have all of our TV's, modem, etc plugged into a UPS unit.

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

    Paper shredder

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

    I was impressed with the speed of the delivery. Shipping was free. The product I bought was comparable to the one that I wanted, but that was out of stock. I just started using it, but it works great so far on paper - didn't jam and crosscuts the paper very small.

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

    Rated 5 out of 5 stars

    good back up

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

    Fits perfectly under desk with plenty of outlets for keeping things powered up and safe from surges in case of power failures. Was very easy to set up.

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

    Rated 4 out of 5 stars

    A good UPS.

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

    I needed to get a new UPS after my old one kicked it. This one has been a solid replacement.

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

    Rated 4 out of 5 stars

    This is an excellent product.

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

    This is an excellent product. I like it because it provides a back up when the power is out.

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

    Rated 5 out of 5 stars

    Lots of outlets.

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

    Was purchased to replace a smaller cyberpower that was a few years old. Has lots of outlets and i feel pretty confident in its ability to protect.

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

    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.

    This battery back up system is a great value and has worked great for years.

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

    Rated 4 out of 5 stars

    Best battery backup I've ever had

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

    This has been the best battery backup I've ever had.

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

    Rated 5 out of 5 stars

    Worth the Money

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

    This battery backup is worth the money. It protects your devices against power surges and allows you time to save whatever you are working on.

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

    Rated 4 out of 5 stars

    Pretty Straight Forward

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

    12 protected outlets (6 with back up power),make it a great peripheral in my home office

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

    Rated 5 out of 5 stars

    Works exactly as advertised

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

    Easy to set up, plenty of outlets for my needs, works exactly as advertised. No drama, no fuss, just works. Would totally recommend.

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

    Great Surge Protector

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

    This surge protector works. When you buy it, remember to plug it in for 8 hours before you plug anything into it. The spacing of the outlets works for several plugs even if they are bigger than usual. It is a little costly, but it is worth it.

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

    Very good

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

    This units size makes it easy to use around your work station good size clear markings

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

    Rated 5 out of 5 stars

    Great back up battery and surge protector

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

    Great back up battery and surge protector, Great protection for my computers especially with all the storms we have here in Florida

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

    Great battery back up

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

    I bought this to hook up my dvr to so I wouldn't loose any recordings while we were on vacation if the power went out. It worked perfectly and I there have been a few times when we had the power flicker but this battery worked like a charm.

    I would recommend this to a friend