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Customer Ratings & Reviews

$64.99

Customer reviews

Rating 4.7 out of 5 stars with 1968 reviews

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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 25 Showing 481-500 of 1,968 reviews
  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    CyberPower Back-up System

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

    So far working as expected. Hopefully IAN won't put it to the test but I feel confident. This is my second one. Using both at the same time. Losts of equipment...

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

    Works well

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

    I bought this to protect my router, modem, and network attached storage devices from any unexpected shutdowns due to power outages. The office in my house shares the same breaker as the kitchen and when someone uses the microwave when the dishwasher is going; it will often times flip the breaker, causing the wifi to go out along with causing my NAS to encounter an unexpected shutdown (potentially damaging files). I don't think this battery backup has enough power to protect my desktop but I usually keep it powered off anyways unless I'm actively using it.

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

    Rated 5 out of 5 stars

    Worry free when power surge or outage comes

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

    Protect from power outage. We got power footage from time to time. This is used to protect desktop computer.

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

    Rated 5 out of 5 stars

    Compact solution!

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    Posted . Owned for 8 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I live in an area where power can come and go. I like these devices to protect the delicate electronics. This offers great power conditioning, and plenty of capacity, all in a compact shape that hides behind a table leg. Perfect for me!

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

    Rated 5 out of 5 stars

    Great for modem and wifi

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

    Great for small loads like your modem or router, especially during small outtages caused by the Florida heat and storms

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

    Rated 5 out of 5 stars

    Excellent battery backup

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

    After charging the battery, I disconnected the power source and checked that my computer and monitor were still working. Had ample time to finish a file and shut down without any problems. Excellent battery backup at a great price.

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

    Rated 4 out of 5 stars

    Piece of mind

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

    I bought this because I was tired of power flickers knocking me offline (really annoying when you are online gaming with a friend, and you just disappear for 10-20 mins. due to a 1 second power flicker). This UPS works as advertised. Just one problem, so far: I pushed the power button a bit hard one time and it got stuck. Had to disassemble the whole unit just to get it unstuck. Cheap design.

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

    Rated 4 out of 5 stars

    Cyberpower Rules

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

    After doing research I’ve determine Cyberpower is one of the most reliable brands in the battery backup space. I’m using this PSU to back up my router and fiber modem. Working great, but may not be enough juice for an extended outage. I like that this model has a replaceable battery as well.

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

    Works good

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

    I bought this for my wife's work computer and so far it has held up really well.

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

    Rated 5 out of 5 stars

    buy it

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

    It seems to working great. I really like that fact that their are many plug ins and my electronics are now protected. It has made life with my printer much easier. Power outages really messed it up before.

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

    Power source

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

    Great for PC gaming set up would recommend especially if you deal with power outages has enough voltage to run my PC and everything else I need

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

    Rated 5 out of 5 stars

    Good purchase

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

    Does the job for the desktop. My mac runs smoothly even when light goes out

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

    Rated 4 out of 5 stars

    Good Backup Unit

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

    Good backup. Got it for my FIOS system to keep the ONT up and running during power outages. Each time our power would go out or blip the FIOS ONT would go offline and it was a major pain to get it back up and running (knocked out TV/Phone/Internet). Since installing this UPS I haven't had an issue at all. Great for my needs.

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

    Rated 4 out of 5 stars

    Great small UPS!

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    Posted . Owned for 1.5 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This is a great small UPS. I bought this for a friend who lives in a mountainous region...where power interruptions are a fact of life. This device is a life-saver in that it permits my friend to keep her laptop and cell-phone going during snowstorms, wild-fire related power shutdowns, etc.

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

    Rated 5 out of 5 stars

    Battery Back up

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

    Excellent little back up. We use it for our DirecTV reciever, a flicker happens and our receiver takes 15 minutes to reboot but not with this back up. Really handy to have and very reliable.

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

    Rated 5 out of 5 stars

    Great back up for garage door opener!

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

    I got it to keep my garage door opener powered in the case of power outage. I was Leary if the ability since it is a 1/2 hp Genie Xcelleratir but it works great! Used for at least 5 open and close cycles then the power came back on.

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

    Rated 5 out of 5 stars

    Affordable UPS

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

    Works great! Keeps powering our internet router for up to 30 minutes after power failure! And it had an excellent price point!

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

    Works great.

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

    The AT&T digital answering machine was easy to set up. The recorded messages are clear and easy to hear. You do need to purchase separately, a DSL filter ($6.95) if you have DSL high-speed internet. I have had it for just a few days and I'm completely satisfied.

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

    Rated 5 out of 5 stars

    Power outage savior

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

    Worth the money. I sometimes trip my fuse box and it causes a shutdown in living room, old condo outdated, having this gives me constant power on computer without worry. Recommend it

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

    Rated 5 out of 5 stars

    Back up a wireless phone

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

    Using to keep Panasonic wireless phone base station up during power outage. Base station fed by Xfinity voie cable modem that is plugged into a larger UPS.

    I would recommend this to a friend