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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 29 Showing 561-580 of 1,968 reviews
  • Pros mentioned:
    Performance

    Rated 5 out of 5 stars

    Back-up power

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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 for what I wanted- to keep my modem going during a power outage.

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

    Rated 5 out of 5 stars

    Great little UPS

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

    I use this to provide temporary power for a cable box, clock, and cordless phone for the 10 or 15 seconds between a power outage and the backup generator kicking in..works great at a reasonable price.

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

    Rated 5 out of 5 stars

    Protects electronic equipment.

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

    Great backup. I over time buy more of these and place them around the house to protect my electronics from surges and power outages.

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

    Rated 5 out of 5 stars

    Excellent Backup

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

    Great size, it doesn’t disturb the esthetic of my home office.

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

    Rated 5 out of 5 stars

    Good small 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.

    This small battery was purchased to provide back-to a wi-fi router. (Modem is plugged into a larger CyberPower battery back-up. Both units appear to be working, though they haven't been tested by a real power outage.

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

    Gets the job done!

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

    Does what its intended to do, easy to follow instructions, and easy to set up.

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

    Rated 5 out of 5 stars

    Compact and easy to use

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

    This UPS packs a lot of power in a small box, perfect for short outages and protecting sensitive electronics from spikes and sags in the power lines.

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

      Hello David. Glad to hear that your Cyber Power unit is working as intended. Thank you for your review! CyberPower

  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    worth getting for extra protection

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

    great backup for what i need to protect the cpu and monitors

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

    Rated 5 out of 5 stars

    Works Great!

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

    I've had this for several years with absolutely no issues. I'd buy it again.

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

    Rated 5 out of 5 stars

    Great Gadget

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

    Works great and allows for me to plug in all my devices with safety and efficiency in mind. I also feel at peace knowing there is backup battery in case of a power failure.

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

    Rated 5 out of 5 stars

    Perfectly sized back-up battery

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

    Happy with the size of this backup to connect to the TV. This is exactly what I need in the space I have for the TV

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

    Rated 5 out of 5 stars

    Good quality 450VA 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.

    Excellent battery backup for a reasonable cost. I recommend it for electronics within it’s 450VA range.

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

    Rated 5 out of 5 stars

    Dependable battery

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

    Cyberpower is a great product. I like the price. I would buy this backup battery again. They are always in stock when I come in the store.

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

    Rated 5 out of 5 stars

    New, smaller size for Cyberpower

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

    I've been using CyberPower UPS's for years, and still appreciate their long lifespan and ease of use. This is the first 450 I've had since the newer size, and I like it! I just hope the battery lasts as long as the older ones have.

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

    Rated 5 out of 5 stars

    Power saver

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

    This power surge is really good, I have slot of products plugged in it, also if a storm does damage to a product plugged in it,.. they will repay for the damaged product

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

    Rated 5 out of 5 stars

    Works well for a modem

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

    We use it as a backup for our WiFi modem since we have multiple short power outages in a week. The modem is the only thing plugged into it and it works great to keep the power on during the outages

    I would recommend this to a friend
  • Cons mentioned:
    Noise

    Rated 5 out of 5 stars

    Great product

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

    Works exactly like it should isn’t as annoying and beepy as my last one.

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

    Rated 5 out of 5 stars

    Great backup power for short outages

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

    This power backup is a lifesaver in Florida where we have many power surges and quick flickers of electricity. It keeps my internet modem and router online and protects from surges.

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

    Rated 5 out of 5 stars

    A necessity

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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 has easily paid for itself after several power outages. A bigger one would be better, but this one gives me ample time to gracefully shutdown my PC and other devices during an power outage.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Battery back up for my internet router.

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

    I bought this for keeping my internet alive during power failure. It quietly does it's job and seems to work great. I tested it by pulling the plug and my computer and router continued to run. I am not sure how long it runs with a power failure but it does work well.

    I would recommend this to a friend