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

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
Highly rated by customers for:
$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 87 Showing 1,721-1,740 of 1,968 reviews

  • Great Battery Back-up

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

    Excellent for home use. Very affordable. Delivers as promised!

    I would recommend this to a friend

  • SouthLand Security

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

    Works great with the SouthLand Security Streaming Camera System.

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

    Ok

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

    Compact but wish it would last longer with the charge capability.

    I would recommend this to a friend

  • It's ok

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

    It does it's job but I would preferred to buy one with more power.

    I would recommend this to a friend

  • Plugged in but not used yet

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

    My technology is all plugged in but I haven’t had to use it yet. Fingers crossed it takes care of me when I need it!

    I would recommend this to a friend

  • Works great

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

    Works great. Good price. Good quality. Recommended.

    I would recommend this to a friend

  • Good price!

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

    Good price! & durable materials, I used for Zoom back up.

    I would recommend this to a friend

  • UPS

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

    Excellent product so far, great for small equipment

    I would recommend this to a friend

  • CyberPower - 450VA Battery Back-Up System

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

    Works fine, but the outlets could be spaced farther apart to allow for the big plugs with built-in transformers.

    I would recommend this to a friend

  • Recommend

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

    This is great if you loose power to your home. You still have internet

    I would recommend this to a friend

  • Performed great

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

    The power went out, the power stayed on to the devices that were plugged in.

    I would recommend this to a friend

  • CONTINUOUS ENERGY

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

    Very well built device for continuous energy and safety from power surges.

    I would recommend this to a friend

  • Good modem backup power source

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

    Read the description carefully; best used for modem backups but not for any modern equipment setup.

    I would recommend this to a friend

  • Great product

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

    A must have. Great back up power. Highly recommended

    I would recommend this to a friend

  • Easy to set-up

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

    Easy to set up, waiting to determine overall reliability as yet.

    I would recommend this to a friend

  • Perfect

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

    Awesome price and have a really good quality. Only in Best Buy

    I would recommend this to a friend

  • Pictures are very misleading. No UPS port as shown

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

    I bought the unit to replace a 350va unit that I use for my NAS unit. if you look at the pictures of the CyberPowerPC 450va, you can CLEARLY see a UPS port. I know, I should have read the specs. My bad; I agree. But I was so excited to see a 450va (more than enough power for my needs) with a UPS port, I bought it. WRONG- This unit DOES NOT HAVE A UPS Port. No you cannot use it for adequate NAS protection.

    No, I would not recommend this to a friend

  • ups

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

    excellent quality solid product good value worth the $

    I would recommend this to a friend

  • Two in one

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

    It is a surge protector plus a UPS. Great for desktops as you can save whatever you were working on in case of power failure

    I would recommend this to a friend

  • great

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

    just what the computer ordered.when you need power here it is

    I would recommend this to a friend
Page 87, Showing 1,721-1,740 of 1,968 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.