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Customer Ratings & Reviews

Your price for this item is $31.99
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The comparable value price is $44.99

Customer reviews

Rating 4.6 out of 5 stars with 1387 reviews

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Rating by feature

  • Value

    Rating 3.9 out of 5 stars

  • Quality

    Rating 3.7 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 are positive about the 450VA Battery Back-Up System's long battery life, surge protection, and performance. Many also appreciate its affordable price, ease of use, and compact size, with several noting the convenient number of outlets. A small number of users mentioned a noticeable humming sound when the unit is running on battery power, and the lack of a USB connection was also cited as a drawback by a few customers.

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 3 Showing 41-60 of 1,387 reviews
  • Rated 4 out of 5 stars

    Good size for back up

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

    The size and weight of the device makes it easy to handle and locate adjacent to my other devices.

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

    Rated 5 out of 5 stars

    Reliable

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

    Very reliable back-up battery. Long life and works as advertised.

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

    Rated 5 out of 5 stars

    Nice small ups

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

    This ups has 4 backup power plugs and 4 surge plugs. Nicely sized so that it doesn't take up a lot of room near the devices. It can be used horizontally or vertically. It has gotten us through several power fluctuations and outages.

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

    Rated 5 out of 5 stars

    Great for keeping your cable and TV going

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

    I purchased this product due to frequent micro outages in my area that caused my cable box and TV to shut down and have to reboot. Within a week of installing CyberPower we had a total outage that was proceeded by seven one to two second outages. The CyberPower kept the cable box and TV on throughout the ordeal until total power was gone, doing exactly what I was hoping for.

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

    Rated 5 out of 5 stars

    Great for the price!

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

    This surge protector/ battery backup system is great for the price. Pros: 8- Total Outlets 4- Surge Protector Outlets 4- Continuous Battery Outlets (run if there is a power outage) Cons: None thus far

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

    Rated 5 out of 5 stars

    Solidly made, reliable

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

    Product has been very reliable, solidly built and great for the price.

    I would recommend this to a friend
  • Cons mentioned:
    Usb connection

    Rated 4 out of 5 stars

    Good for electronics and network equipment

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

    As this model lacks the USB connection, I would not recommend using it with a computer. It is, however, fine for your network equipment, game consoles, monitors, and other equipment that you do not want to shut off unexpectedly if your power blinks or goes out. I use them with network equipment primarily, and several recently failed after lightning storms, but they saved the equipment... mission accomplished.

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

    Rated 4 out of 5 stars

    Great so far

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

    This is second Cyberpower backup purchased, and rating based primarily on previous one which lasted five years. Current one only in use for couple months, but the first was well constructed and durable and well worth the money in rural area prone to frequent brief power interruptions, so opted to stick with the brand.

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

    Rated 5 out of 5 stars

    Great price, plenty of outlets.

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

    Great price and performance for this UPS. Fits my needs perfectly.

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

    Rated 5 out of 5 stars

    Great UPS

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

    Small, lots of outlets. Last longer than I thought.

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

    Rated 5 out of 5 stars

    Great Backup for the Money

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

    This provides just enough back-up and surge protection for the mini black outs we get in my neighborhood. The back-up instantly shifts power to the battery when a mini-black out hits us. With the construction going on around us often there are these little hits and this has stopped the problems of abrupt shutdowns. This is perfect for what we need.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use, Performance

    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.

    simple to use and works great would buy again when it goes.

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

    Rated 4 out of 5 stars

    Good surge protector

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

    Great price and a lot of outlets nicely spaced with a good battery back up

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

    Rated 5 out of 5 stars

    Good product for the price

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

    Good product for the price, works just as advertised

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

    Rated 5 out of 5 stars

    Does what it needs

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

    The purpose of a battery back up is to help prevent your computer from both surges and unwanted power down, both of which could potentially harm the computer. Ensuring proper use by not overloading the outlets, this device does what it is designed to do.

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

    Rated 4 out of 5 stars

    Good for Price

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

    Pretty decent device for price. Has to be charged for eight hours prior to first use. Also, needs to be turned on with 2-second hold down on power button. Well marked for these, but good to know before purchase. Note only one side has battery back-up, so use other side for printer or other items that need only surge protection.

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

    Rated 5 out of 5 stars

    Great DVR battery backup

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

    I bought this battery backup to keep my WiFi router, DVR and TV working during power outages and it works great. I no longer lose a recording because of a power outage and I have more access to the outside world with this unit supporting my WiFi Router.

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

    Rated 5 out of 5 stars

    perfect for home theater setup

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

    I wanted to get a battery backup for my home theater setup so that hopefully my cable box, modem, and telephone line would still be active in the event of a power outage. So far, no issues on that end, but I've unplugged it from the wall outlet a few times to be sure it's working, so it's doing what it should!

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

    Rated 5 out of 5 stars

    It powered me through a recent outage.

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

    I purchased this about a month ago. During a recent power outage, that lasted nearly 30 minutes, this battery backup device was connected to my computer, monitor and printer. I would not have known that there was an outage except for other appliances in my house that had stopped working.

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

    Rated 4 out of 5 stars

    Put it to the test.

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

    I love the battery back-up part. I've been in the middle of an on-line test when the power has gone out, so it was very helpful that I could save my work before shutting down my computer. This is my second one, however. The first one quit working after about 2 years. It was well worth the money to me for how long it lasted and the job it did.

    I would recommend this to a friend