Appliances Memorial Day SaleFree delivery. Ends 6/3. Terms apply.Shop now

Skip to contentGo to Product Search
Main Content

Customer Ratings & Reviews

No content
  • Front. CyberPower - 950VA Battery Back-Up System - Black.
  • Alt View 11. CyberPower - 950VA Battery Back-Up System - Black.
  • Alt View 12. CyberPower - 950VA Battery Back-Up System - Black.
  • Alt View 13. CyberPower - 950VA Battery Back-Up System - Black.
  • Alt View 14. CyberPower - 950VA Battery Back-Up System - Black.
  • CyberPower SX950U Product Video video 1 minutes 29 seconds

CyberPower - 950VA Battery Back-Up System - Black

Model:
SX950U
SKU:
6239407
$109.99

Customer reviews

Rating 4.7 out of 5 stars with 1763 reviews

Rating Filter

Rating by feature

  • Value

    Rating 4.7 out of 5 stars

  • Quality

    Rating 4.7 out of 5 stars

  • Ease of Use

    Rating 4.8 out of 5 stars

96%
would recommend
to a friend

Customers are saying

Customers admire the 950VA Battery Back-Up System for its reliable performance and impressive battery life, capable of keeping essential appliances running during outages. The surge protection, convenient outlets, and USB ports are also appreciated features, along with its ease of use and reasonable price. However, some customers have noted the system can produce some noise.

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 46 Showing 901-920 of 1,763 reviews

  • A great purchase.

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

    So far so good. Haven't had any issues yet but will update if I do.

    I would recommend this to a friend

  • Surgeprotectorbatterybackup

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

    Works great. There was no problem with it. I would buy this product again

    I would recommend this to a friend

  • Great backup!

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

    This backup works great in our living room and it protects all of the devices we have perfectly.

    I would recommend this to a friend

  • Office UPS

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

    Replaced an old UPS. Great value and better capability with 12 vs 10 plugs.

    I would recommend this to a friend

  • Super protector

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

    My computer and my router working better whit the batteries system when raining

    I would recommend this to a friend

  • Power up.

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

    Backup for my cpap device. Excellent choice for multiple uses.

    I would recommend this to a friend

  • Battery backup

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

    We lose power a lot and it helps give us time to adjust.

    I would recommend this to a friend

  • best buy is the best.

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

    this product is very easy to use and very easy to install. easy and simple instructions.

    I would recommend this to a friend

  • Easy to use back up battery

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

    This is a good Battery backup! You can plug a lot into it and not worry about losing anything

    I would recommend this to a friend

  • Cyberpower

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

    Working as expected, I have bought several of these in the past.

    I would recommend this to a friend

  • Great backup pack

    |
    |
    Posted . Owned for 9 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I’ve lost power 3 times and this pack backed up my computer ,printer, and laptop

    I would recommend this to a friend

  • Great back up system /surge protector

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

    Have used Cyber Power for several years and never had a problem with the computer installed on it.

    I would recommend this to a friend

  • It works

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

    It already caught a brief power outage and saved me from losing unsaved work.

    I would recommend this to a friend

  • Great product

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

    Great product. This is a replacement for a similar model that lasted several years.

    I would recommend this to a friend

  • It is very simple, it just works.

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

    Good price, plenty of outlets. Works as needed. Actually solved the problem and was very simple.

    I would recommend this to a friend

  • Good option for electronics protection.

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

    I did allot of research and felt that this model offers the best device for thre price.

    I would recommend this to a friend

  • Battery Back Ups

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

    Exactly what I needed to protect my smart TV and other devices.

    I would recommend this to a friend

  • Cyberpower battery

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

    Cyberpower battery runs great and save, can hold 20 minutes of power.

    I would recommend this to a friend

  • Great for my small devices

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

    I will a better understanding after the stormy season,after a few black out right now no problem

    I would recommend this to a friend

  • Back up power

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

    It is small and compact. It is there when your power goes out. Works great!

    I would recommend this to a friend
Page 46, Showing 901-920 of 1,763 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.