Black Friday is hereShop new DoorbustersShop now

Main Content

Customer Ratings & Reviews

Your price for this item is $62.99
Clearance
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 9 Showing 161-180 of 1,023 reviews
  • Rated 5 out of 5 stars

    Perfect size, sufficient power

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

    This UPS system is perfect for a small space computer set up.

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

    good value- feel safer

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

    Purchased unit to unclutter all the extension cords in use. works perfect.

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

    Great power source

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

    Works great for keeping my computer equipment running during power outages.

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

    Technically Advanced Unit

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

    The unit is easy to utilize and has many favorable features.

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

    Rated 5 out of 5 stars

    Works great

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

    Haven't had any power issues but when testing it works for me no issues.

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

    Rated 5 out of 5 stars

    Great Product!

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

    always recommended when in need of a reliable battery backup

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

    Rated 5 out of 5 stars

    Great backup.

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

    great back up, plenty of space for adding devices, and price is reasonable

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

    Rated 4 out of 5 stars

    Great backup at a great price

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

    This backup was purchased in a semi-emergency situation when my previous backup died unexpectedly. Plenty of outlets and power for my extensive home theater setup.

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

    Rated 5 out of 5 stars

    Easy install

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

    Very good quality and easy to install. Very heavy howevet

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

    Great APS

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

    I haveo an APS (Aux. Power Supply) for all of my electronics. They filter the power coming from the utility system, preventing spikes and surges, and protecting from power dips, which can also damage equipment. I like the CyberPower unit because you can mute the alarm signal by simply pushing a button, rather than having to go through a menu system to turn it off.

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

    Rated 5 out of 5 stars

    Long lasting power.

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

    Saved us a bunch of times when power went out. must have

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

    Rated 5 out of 5 stars

    Great backup!

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

    Quick/easy-reliable! This is my second purchase of this type product.

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

    Rated 5 out of 5 stars

    HEAVY DUTY BACK UP

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

    HIGHLY RECOMMEND. NO PERFORMANCE PROBLEMS ENCOUNTERED.

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

    Serves its purpose

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

    Has plenty of plug ins for components. Easy to use and directions.

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

    Rated 5 out of 5 stars

    saves computer

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

    saves computer & appliances during power outage & lightening strikes

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

    Rated 4 out of 5 stars

    Works well holding power during power outage

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

    I purchased this to provide backup power and protect my electronics from power surges, has worked well so fat.

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

    Rated 5 out of 5 stars

    Good Product

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

    Good product, does exactly what is says.Price is fair

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

    Rated 5 out of 5 stars

    Great budget UPS

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

    Replaced an older cyberpower UPS with this one and it works great.

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

    Rated 5 out of 5 stars

    Great Power Stabilizing Unit!

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

    Power stabilizing protection at an affordable price!

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

    Rated 5 out of 5 stars

    Reliable Product

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

    I've been using this brand for years and find it very reliable.

    I would recommend this to a friend
Sponsored