Last Chance 48-Hour Flash SaleEnds Dec. 24. Limited quantities.Shop now

Skip to content
Gift Ideas
Main Content

Customer Ratings & Reviews

Your price for this item is $31.99
Clearance
The comparable value price is $44.99

Customer reviews

Rating 4.6 out of 5 stars with 1387 reviews

Rating Filter

Rating by feature

  • Value

    Rating 3.9 out of 5 stars

  • Quality

    Rating 3.7 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 are positive about the 450VA Battery Back-Up System's long battery life, surge protection, and performance. Many also appreciate its affordable price, ease of use, and compact size, with several noting the convenient number of outlets. A small number of users mentioned a noticeable humming sound when the unit is running on battery power, and the lack of a USB connection was also cited as a drawback by a few customers.

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 53 Showing 1,041-1,060 of 1,387 reviews
  • Rated 5 out of 5 stars

    Good job

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

    Good quality, never had problem since I have it since more than 2 months. Not to big and not making to much heat in my furniture.

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

    Good Product

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

    Use these for our servers at work. Not sure if this the product themselves with battery backups I just hate they need to be replaced every couple years

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

    Rated 1 out of 5 stars

    Saved my computer

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

    We had a power outage and this product saved my computer from being fried. Saved us a lot of grief. Great product.

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

    Works great

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

    Affordable protection that works great. CyberPower has excelled and is competitive with other name brands such as APC.

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

    Great for backup

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

    Needed a backup power supply for telephone and laptop. This unit has saved my "in process" data on more than one occasion.

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

    Great Surge Protector

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

    I have bought items similar to this in the past, but I have been very pleased with this particular product.

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

    Very handy piece of my setup.

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

    I live in FL and we have frequent power outages and this product has been an excellent addition to my household setup.

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

    Has been a big help for me

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

    The first week I got it the power went out while I was in the middle of something. I didn't lose anything because of it.

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

    Does what it does

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

    No complaints so far. I let it charge for a day and it works just fine. No loud fans or excess heat. Good mid-level UPC

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

    Great for power back up for laptops and desktops

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

    In those instances where power interruption could be costly, this is your perfect choice. I have a few and they work great!

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

    Rated 3 out of 5 stars

    It works.

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

    The surge protector works fine. It is higher priced than I remember ever paying for a surge protector;

    No, I would not recommend this to a friend
  • Rated 5 out of 5 stars

    New Battery charger

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

    Works great has lots of places for plugs Helps me plug in lots of other stuff for my computer.

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

    Does what it is supposed to do.

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

    I back up my computer with one and my TV with another one. Frequent power outages are no longer a problem.

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

    Great for power outages.

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

    Worked great to maintain UPS power to desktop and monitors for a short power outage within hours of setting it up.

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

    CyberPower - 450VA

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

    It's good to have a battery back-up, because it protects your equipment.

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

    Good guardian

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

    The risk is the avoided risk, is better be preventive to safe money. I feel sure with this Cyber Power...

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

    To this point I have no complaints.

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

    This CyberPower - 450VA Battery Back-Up System - Black seems to be working as advertised. I have had no issues thus far.

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

    Good Price Gets the Job done

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

    I use this unit to keep network equiment safe from brownouts and small outages. Enough power for a few network appliances for 30 min.

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

    Great Battery Back-Up System

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

    I love having piece of mind knowing I have a great battery back-up system in place just in case.

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

    Good Back up Battery

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

    Back up battery is much lighter than its predecessor. Have not really tested it fully but so far so good for the $.

    I would recommend this to a friend