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 20 Showing 381-400 of 1,968 reviews
  • Pros mentioned:
    Surge protection

    Rated 5 out of 5 stars

    Great temporary protection

    |
    |
    Posted . Owned for 7 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    With the need to keep working on our computer after the power goes out, this is a great thing to have. Also prevents damage from a surge.

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

    Rated 5 out of 5 stars

    Good value

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

    We live in an area which is prone to residential power interruptions. Our home security system somtimes requires a manual reset after power interruption so we purchase this product. To date it has functioned very well.

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

    cyberpower

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

    everyone should have this additional security to protect your investment.

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

    Rated 5 out of 5 stars

    450VA Cyberpower

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

    Just as good as the ones twice its size and capacity. takes up much less space on the PC desk. plenty of power to keep my all-in-one powered up until I can shut it down. and recharged both cell phones on the remainder of the battery charge before the power came back on.

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

    CyberPower-450VA Battery Back-up experiance

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

    The Cyberpower-450VA Battery Back-Up System is great easy to set up plug it in and turn it on it will beep and set when power is turned on plug in your devices and you are safe in the event of a power surge or outage this is really a great device to have it saves your electronics from damage.

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

    Rated 5 out of 5 stars

    So far so good but time will tell

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

    Had no problems so far. Power switched off and this still provided some power. Owned for a year or so alreaady. Will report back in 10 years if I am still alive or sooner if this thing breaks. I am relying on it big time.

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

    Rated 5 out of 5 stars

    Best $mall Battery-Backup for the price

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

    Within 2 days of installing this product we had several small power outages which can causes the loss of the telephone and our local Private Wireless Network... This back-up system gives us time to bring the router and modems down and back up safely and quickly...

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

    Perfect backup

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

    Purchased the back-up system to use for my family room entertainment components to help with random power outages. Easy to use and works great.

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

    Rated 5 out of 5 stars

    Good value, works fine

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

    Given all the lightning we have here, definitely wanted to get one of these before we installed our new Samsung UHD TV. Has already been called into use and worked just fine. Least expensive model in the store. Replaced a more expensive APC which just up and died not long after the warranty expired.

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

    Rated 5 out of 5 stars

    Works great

    |
    |
    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    We had a power surge and my other power strip “popped” and left a burn mark on the outside strip, and a bad smell. The lamp plugged into it and the phone were toast! This strip was fine and all of my equipment plugged into It was safe. Thank goodness! Will definitely be purchasing more for around the house!

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

    Rated 5 out of 5 stars

    Great value

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

    Easy to use. Plug and play. Great value for your dollar

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

    Rated 5 out of 5 stars

    Great Product!

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

    Just bought this last week and installed it not expecting it to get used so early, luckily I did because there was a winter storm that came through with lots of ice and my city lost power, thankfully my battery backup was still running and I was able to safely shutdown my computer.

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

    Rated 5 out of 5 stars

    Keeps you up and running

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

    Now that I am working from home, I needed to have reliable internet. This battery backup works perfectly when you get those short power blips that used to cause my modem/router to have to reboot. With this backup, I never miss a beat and can keep on working with no power interruptions.

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

    Rated 5 out of 5 stars

    More line protection

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

    There was a distant rumble of thunder during a recent storm that caused all devices, ie TV, lights to flicker & reset..Eveything came back except my Dell XPS which required a motherboard. I have added this device as a protective buffer in the incoming power to the XPS. UPS is a bonus and the unit costs much less than that $377 board..

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

    Rated 5 out of 5 stars

    Battery Backup

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

    Easy to install. Protects against surges and power outages. This has a small battery but it keeps my computer up long enough to save my documents and shut down.

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

    Rated 5 out of 5 stars

    Great little UPS for home use.

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

    Small, efficient and durable. Living in Florida, there are outages all the time. I've seen it work a few times already and Im happy with this product.

    I would recommend this to a friend
    • Brand response from TechSupport
      Posted .

      Glad to hear that the unit is working as intended. Thank you for your review! CyberPower

  • Pros mentioned:
    Size

    Rated 5 out of 5 stars

    Perfect for my use

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

    I purchased this backup for a Ring home alarm base station. The base station has its own battery (supposedly good for 24 hours) but by adding this CyberPower unit I have a tremendous backup system. It is small enough to fit into a small cabinet out of sight. This is a nice small backup unit that works perfectly for low power devices.

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

    Rated 5 out of 5 stars

    A must-have for the home office.

    |
    |
    Posted . Owned for 5 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I have two of these battery back-ups, and they have been worth the money. They keep my computer running for a few minutes when the power goes out, which allows me to save all my work and shut down without losing anything. I highly recommend.

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

    Rated 4 out of 5 stars

    Would recommend

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

    Haven't had to use it for anything but a surge protector (no power outages), but it works. Tried plugging in another extension cord because my house doesn't have many outlets and it didn't work so that's unfortunate. Overall at this point I think it's good.

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

    Rated 5 out of 5 stars

    Excellent battery back-up system

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

    I've had this same Cyber Power for the past 10 years which always protected my equipment, & I have quite a few power outages here in Florida. However, it finally went, so I replaced it with the same model which luckily was still available & hopefully will give me another 10 years of good service!

    I would recommend this to a friend