Appliances Presidents’ Day SaleEnds 2/25. Limited quantities. No rainchecks.Shop now

Skip to contentGo to Product SearchGo to Footer
Main Content

Customer Ratings & Reviews

$64.99

Customer reviews

Rating 4.7 out of 5 stars with 1968 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 4.8 out of 5 stars

Pros mentioned filter

Cons mentioned filter

95%would recommend to a friend

Customers are saying

Customers commend the 450VA Battery Back-Up System for its battery life, performance, compact size, surge protection, affordable price, and ease of use. Many appreciate the generous amount of outlets available. However, some customers have noted the absence of a USB port, while others have mentioned concerns about noise, weight, and alarm issues.

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 45 Showing 881-900 of 1,968 reviews
  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    Still running when the power goes out as

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This has been working since day one and when the power went out I was still able to count on it.

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

    Excellent product!

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This brand has always been reliable for me so when I needed another I knew I couldn’t go wrong with it.

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

    Rated 4 out of 5 stars

    Just what I needed

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

    Just what I needed. I have a outdoor Nest camera and my home alarm control panel plugged in and works like a charm. Maintains power on those devices, usually long enough for power to restore during an outage.

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

    Rated 5 out of 5 stars

    These are must for any company

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

    These back ups units passed with flying colors during our last power outage. An entire office was very happy to have these.

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

    Rated 5 out of 5 stars

    Has been very handy

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Power has gone out several times and all of my tv and computers that is plugged in were not damages.

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

    Rated 5 out of 5 stars

    Simple battery protection

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Had a PC that kept shutting off when the power would blink - this battery backup solved the problem.

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

    Rated 5 out of 5 stars

    No need to worry again!

    |
    |
    Posted . Owned for 2 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Best backup battery money can buy. What else can I say? It gets the job done

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

    Rated 5 out of 5 stars

    Good product

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Perfect compact size. Gets the job done with very little interruption

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

    Rated 5 out of 5 stars

    Great value

    |
    |
    Posted . Owned for less than 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    good price, great unit - will definitely purchase again

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

    Rated 5 out of 5 stars

    It works and protects my equipment

    |
    |
    Posted . Owned for 10 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    If you need a good inexpensive UPS, then this is the model. It provides safe power to all of my computer equipment.

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

    Rated 5 out of 5 stars

    Good- repeat buy

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Has worked well for all our needs. A repeat purchase.

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

    Perfect

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Just the right size for Christmas lights. Not tyoo big so it's easier to hide away out of sight

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

    Reliable device

    |
    |
    Posted . Owned for 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works like a charm. We use it to keep our internet up during frequent power glitches due to electrical storms. The flicker of power used to cause us to drop internet and force the modem to reconnect (10 min of downtime minimum). Now the connection stays steady.

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

    Rated 5 out of 5 stars

    Cheap and good

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

    Solid ups purchased for a wkst and cable modem in a pinch due to recent power outages. No USB connection, but solid.

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

    Rated 5 out of 5 stars

    Battery

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Easy to use. I like the small Compact size of the battery

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

    Rated 5 out of 5 stars

    Good system.

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works great. I've used cyberpower branded backups for years and they've always been good.

    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.

    Needed battery backup so that the electricity will keep flowing if the power goes out. This device gets the job done.

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

    Rated 5 out of 5 stars

    Back up battery

    |
    |
    Posted . Owned for 3 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Very good. Protected and kept my internet modem and electronics going while a storm took down power.

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

    Good for small appliances, like internet.

    |
    |
    Posted . Owned for 11 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I bought a cheap UPS for a backup for my internet. Plug it in and it goes. Notifies you if the power goes out, but it keeps on running. Don't expect this to run a whole computer, but for something small like internet it is a good investment. I had it plugged into my gaming desktop, and I got maybe 1 minute out of it on battery alone while not even gaming.

    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.

    Bought this to replace the 6 year old same item. Obviously since it was 6 years old, it works as it should for a long time!

    I would recommend this to a friend