Memorial Day SaleEnds 5/25. Limited quantities. No rainchecks.Shop now

Skip to contentGo to Product Search
Main Content

Customer Ratings & Reviews

No content
  • Front. CyberPower - 450VA Battery Back-Up System - Black.
  • Alt View 11. CyberPower - 450VA Battery Back-Up System - Black.
  • Alt View 12. CyberPower - 450VA Battery Back-Up System - Black.
  • Alt View 14. CyberPower - 450VA Battery Back-Up System - Black.

CyberPower - 450VA Battery Back-Up System - Black

Model:
SE450G1
SKU:
6239405
$64.99

Customer reviews

Rating 4.7 out of 5 stars with 1985 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

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 40 Showing 781-800 of 1,985 reviews

  • Surge protection

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

    Great product/value. Does the job promised! Would definitely recommend to others looking for surge protection.

    I would recommend this to a friend

  • Surge Protector

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

    Works great! Very satisfied with this product, which we use to protect our computers.

    I would recommend this to a friend

  • Works

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

    Works as advertised. I've had it for a few weeks now and haven't had any issues.

    I would recommend this to a friend

  • Great addition to my electronics

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

    When we use the backup generator, the backup system keeps the receivers protected and from not having to reboot. Great when recording a favorite show.

    I would recommend this to a friend

  • 6 months on - it's doing a good job

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

    The power in the room where my router sits keeps getting tripped when people use the treadmill. Now they can do their exercise without my internet being lost. Haven't had a problem with it since i installed it.

    I would recommend this to a friend

  • Thank you Cyberpower

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

    Works great and as it should, great upgrade for gaming and router setup to avoid lost connections!

    I would recommend this to a friend

  • Backed up battery

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

    Excellent choice great buy. Had bought this once before lasted for five years great bargain. Super fantastic choice, super product and lightweight.

    I would recommend this to a friend

  • Good Battery Backup

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

    This CyberPower - 450VA Battery Back-Up System work as good as it stated I recommend it for normal use

    I would recommend this to a friend

  • Surge Protection Guarentee

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

    Fabulous Protection for Electronic Equipment! Guarented to Protect or They Replace your Electronics!

    I would recommend this to a friend

  • Necessary to have.

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

    We have satellite tv so we keep receiver and WiFi router plugged in to battery backup in case of storms. Has been very helpful on many occasions.

    I would recommend this to a friend

  • Reasonable price

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

    Purchased a few weeks ago to use for modem and routers. Easy to install and outlet layout is good for multiple devices. First power outage test was successful.

    I would recommend this to a friend

  • Easy to install

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

    Great product and it is easy to install. Since I just purchased it I have not had the opportunity to evaluate its service.

    I would recommend this to a friend

  • Good protection for my computer and accessories.

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

    My old UPS finally gave up the ghost, so I was interested in finding something affordable to replace it. I am very pleased with its performance.

    I would recommend this to a friend

  • very good

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

    CyberPower - 450VA Battery Back-Up System - Black good

    I would recommend this to a friend

  • Great UPS

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

    Works like it should. Easy set up. Always the brand to go with.

    I would recommend this to a friend

  • perfect smaller power back up

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

    I needed a smaller unit for an intraoral scanner and it had to fit into a smaller space---perfect! Fair priced, quality unit, very pleased.

    I would recommend this to a friend

  • As expected.

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

    Great product for the sale price. Durable and reliable. Well made product. Will buy another for a different part of my house.

    I would recommend this to a friend

  • lees

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

    Had to replace an APS backup with cyberpower, big shortage of ups's, but it is working fine.

    I would recommend this to a friend

  • Great battery backup

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

    We were experiencing fluctuations in our power at our ice cream store. Added this and no problems since

    I would recommend this to a friend

  • Great added protection

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

    extra protection fro appliances with battery backup allowing time to turn off equipment and/or protection from surges

    I would recommend this to a friend
Page 40, Showing 781-800 of 1,985 reviews
Sign in or Create Account

Get the latest deals and more.

Best Buy appLearn more
Share on YouTubeShare on InstagramShare on TikTokShare on FacebookShare on PinterestShare on X
Best Buy Canada
AccessibilityTerms & ConditionsPrivacyInterest-Based AdsState Privacy RightsHealth Data PrivacyDo Not Sell/Share My Personal InformationLimit Use of My Sensitive Personal InformationTargeted Advertising Opt OutCA Supply Chain Transparency Act
In-store pricing may vary. Prices and offers are subject to change. © 2026 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.