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 23 Showing 441-460 of 1,023 reviews
  • Pros mentioned:
    Surge protection

    Rated 5 out of 5 stars

    needed steady power

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

    I am using this for my smart tv because it regulates the voltage as well as providing surge protection. The tv was resetting itself and not doing that anymore.

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

    Rated 5 out of 5 stars

    has all the outlets I need

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

    Has a few features others don't and works well. The 850 VA is a nice size to carry all the items I have plugged in. The price was also very good for the capacity.

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

    Rated 5 out of 5 stars

    Does what it's suppose to.

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

    Worth the money to protect all my expensive stuff. Plenty of plugs. Has a mute button on the top if you don't want to hear the beep when the power goes out.

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

    Good entry level UPS

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

    My larger UPS failed after about 5 years. This is a solid replacement for 30 minutes of backup time.

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

    Rated 5 out of 5 stars

    No complaints

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

    I have my entire computer system and setup plug into this UPS and I feel safe that if there was a power outages or surge my system will be protect.

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

    Rated 5 out of 5 stars

    Grrat Battery backup for computers

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

    We have occasional power interruptions and this keeps computer on and when power goes out, gives me time to shut properly shut doen computer.

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

    Rated 5 out of 5 stars

    Great Battery Backup

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

    This currently is running my 8 camera security system. The backup will last almost 2 hours with my cameras..

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

    Rated 4 out of 5 stars

    Can tell made if good quality material

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

    Purchased to protect my major apple desk top purchase. Only concern is the product is very heavy due to battery back up. I have lost power due to a lot of storms so I purchased this product to be safe. A little costly but it's protecting a costly apple investment

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

    Rated 5 out of 5 stars

    Great for computers

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

    I had a 10 year cyberpower battery backup that saved my computer from a lightining strike, this was a very easy decision, they last a long time

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

    Rated 5 out of 5 stars

    Works great

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

    After the initial 8-hour charge, I plugged in my TV and DirecTV receiver. So far, it has worked perfectly during a couple of minor power outages.

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

    Rated 5 out of 5 stars

    Great backup for frequent power outages

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

    We have frequent power outages. This battery backup maintains power to my entire computer system so I can use it while the rest of the house is dark.

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

    Rated 5 out of 5 stars

    Outstanding general purpose UPS

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

    I have a bunch of these units and are very pleased with them. They perform perfectly during outages. The alarm mute button is a nice feature too.

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

    Rated 5 out of 5 stars

    Good buy for the money

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

    I needed a battery backup that had 12 outlets and could accomodate various sizes of plugs. It works perfect. Worth every peny I spent.

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

    It's a battery backup

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

    Plain and simple, it is a battery backup and it works.

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

    Rated 5 out of 5 stars

    Great Backup

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

    This is a great battery backup. I have lost power several times since purchasing and it keeps all of my equipment powered. No problems so far.

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

    Rated 5 out of 5 stars

    Great buy.

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

    This battery backup works great and has already come in handy when my power went out. If you need a battery backup then this is the one for you.

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

    Rated 5 out of 5 stars

    works as it should

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

    got this battery backup for my computer to prevent sudden crashes caused by drop in power and power outages. So far so good !

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

    Reasonable battery backup

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

    This seems to be a good backup at a reasonable price.

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

    Rated 5 out of 5 stars

    Great for any situation

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

    This was helpful when I live in an area that has winds and power outages a lot. The battery back up was a must and it was the reason I bought it.

    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.

    With the crazy weather we have had this spring, this unit sav3d my equipment and data several times. Good investment!

    I would recommend this to a friend
Sponsored