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Customer Ratings & Reviews

Your price for this item is $59.99

Customer reviews

Rating 4.7 out of 5 stars with 1362 reviews

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  • 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

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95%would recommend to a friend
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 or points for an honest, helpful review.
Page 1 Showing 1-20 of 1,362 reviews
  • Rated 4 out of 5 stars

    Battery back up & surge protector

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    Posted .
    Owned for 3 weeks when reviewed.

    Well, so far so good. I've already had a power surge and it kept all my electronics (computer, monitors, external hard drive) from frying. SO - I'm happy.

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

    Great backup

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    Posted .

    I purchased this backup for my desktop computer and it works perfectly. I am really happy with its performance so far. Thank you!

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

    APC easy to use

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    Posted .
    Owned for 1 month when reviewed.

    Easy to plug in and use. We have had this type of APC before. In fact we just replaced the last one that we had for about 10 years or so. Great product!!!

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

    Great little unit

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    Posted .
    Owned for 1 month when reviewed.

    This is a great little backup that also helps stabilize the AC power. I am using it to stabilize the power going to my golf cart charger.

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

    Back up battery

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    Posted .

    Working good when it needed most specially during brown out.

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

    Rated 5 out of 5 stars

    Tiny, but useful

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    Posted .
    Owned for less than 1 week when reviewed.

    This device used to be big, but this particular item is really compact. That makes it convenient when you don't have a lot of space under your desk or behind the the entertainment center. Well designed to fit 8 power cords, including those power cords like the apple and Asus king, they are bing in lenght. Maybe not so convenient for those wide power connectors like those from 3.5 external disk. Price is very good, I just hope the small battery included will last long and wont run out of power before the time specified on spec. it can be laid on the floor or hang it to the wall with two screws provided with the package. The cable is very long, make it convenient to reach a power outlet that is far from your equipments.

    I would recommend this to a friend
  • Rated 1 out of 5 stars

    Stopped working less than 3 months

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    Posted .
    Owned for 3 months when reviewed.

    I purchased this item August 5th and it recently stopped working about two weeks ago.

    No, I would not recommend this to a friend
    • Brand response from TechSupport
      Posted .

      Hello 4DianaJ, The SE450G1 comes with a 3 year warranty from date of purchase. Please reach out to our support team at 877-297-6937 to provide more information and we'd be happy to assist. We hope to hear from you! CyberPower

  • Rated 5 out of 5 stars

    Pleased with my CyberPower purchase.

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    Posted .
    Owned for 1 month when reviewed.

    I have UPS Backup batteries all over the house. Everywhere there's electronic equipment there's a UPS. I have three (3) in my home office and needed one more. I'm not too particular on brand as I am on quality. I'd never heard of CyberPower, so when I noticed how reasonablly priced they are I had to do my research. I read a ton of reviews from Best Buy and the OEM in addition to the runtimes. So, I decided to take the leap of faith and go with an "unknown" brand. About two weeks after purchase we had some pretty bad weather and my power was flickering and later went out. I'm happy to report, this battery held up and I was able to continue to work without any interruptions. The lights were back on in less than 15 minutes and it continued to power my work laptop/docking station and three (3) monitors. The runtimes listed on the box are just an estimate. Depending on how you use your battery will determine how long it will last when truly needed.

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

      Happy to hear the new unit is working for you and properly protected you and your equipment during the recent outage! If you ever have any questions or concerns with any of our units, please reach out to our Technical Support team at 1-877-297-6937, and select option 1. Thank you for your review! CyberPower

  • Rated 5 out of 5 stars

    An inexpensive, simple APC that just works

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    Posted .
    Owned for 1 month when reviewed.

    This APC's installation is trouble free. I have seen it engage several times without loss of power to my TiVo, cable modem / router, or Moca adapter. In Florida, this is very important, as our wall power drops (even briefly) every week or two. With this APC, I can see that we don't have to worry about damage to my devices or loss of service. This is especially important because my devices don't always reboot themselves properly, and if I'm gone for a long time, they'd be down. I also verified that if the APC runs completely out of battery power, it does come back on and supply power when the wall power is restored. Thank goodness! This is all I can ask for.

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

    CyberPower 450VA Review

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    Posted .

    Great packaging. Easy to follow instructions and quick installation. The product is working as described. Although the system is basically plug and play, I would still recommend users not familiar with this type of equipment to read the directions throughly to understand the power usage of the devices that will be plugged in to the product.

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

    Perfect Choice

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    Posted .
    Owned for 1 month when reviewed.

    This backup battery/surge protector is perfect for my needs. My laptop has some backup protection. This device provides additional backup protection. This device also provides protection for surges in electricity which can occur during a rain storm. The CyberPower - 450VA was the perfect choice for my needs.

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

    An hour of power for modem+router

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    Posted .
    Owned for 1 month when reviewed.

    I had long wanted battery backup for our internet so that my wife could continue an online (e.g. Zoom) meeting during a power failure without interruption and end it gracefully. I could not figure out from the info available online just how long the backup would last given the volt/amp rating of the system ( I saw estimates ranging from a few minutes to a few hours). So when this unit when on sale I bought it mainly for calibration purposes, to see how many minutes of backup a 450VA system would give me. Since our laptop batteries last nearly 2 hours, we only needed backup for the cable modem and router. The total wattage of those units was about 22.5 watts, and this system powered them for an hour and ten minutes. The box the unit came in also has a useful table on the outside, showing how long the power would last given the power consumption of what is being backed up. I could not find that info online, either in the tech specs or the summary product description on the Best Buy website. As the wattage of the devices being backed up increases, the length of time that that the backup power lasts goes down sharply. No wonder that the online estimates ranged from a few minutes to a few hours.

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

    Great product

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    Posted .
    Owned for 1.5 years when reviewed.

    I started buying CyberPower after several deceptions with the direct competence. As any CyberPower unit, it does the job perfectly but remember, the batteries, regardless of usage, do not last more than a year or year and a half. The good thing about this units is how easy is to replace the batteries and the cost is inexpensive (compared to the competence).

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

    Simple Setup

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    Posted .
    Owned for 1 month when reviewed.

    These devices are super simple to setup. You don't even have to take it apart an plug in the battery anymore. Just plug in and go. We haven't tested them through a power failure yet so I can commit on the # of mins they truly last just yet.

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

    CyberPower Back-up System

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    Posted .
    Owned for 3 weeks when reviewed.

    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

    So far so good but time will tell

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    Posted .
    Owned for 1 year when reviewed.

    Had no problems so far. Power switched off and this still provided some power. Owned for a year or so alreaady. Will report back in 10 years if I am still alive or sooner if this thing breaks. I am relying on it big time.

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

    Little Powerhouse Back Up

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    Posted .
    Owned for 1 year when reviewed.

    Living in N.C. by the shore I am used to power fluctuations. This little powerhouse has saved me more times than I can count. Easy set up, just remember to charge it the 1st time before usage.

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

    Works as expected

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    Posted .
    Owned for 1.5 years when reviewed.

    I bought this so if the power went out, I could properly shut down my PC. I have my monitor and desktop hooked up to it and so far, the power has gone out several times and it performed as expected.

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

    Protects electronic equipment.

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    Posted .
    Owned for 3 weeks when reviewed.

    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
  • Rated 5 out of 5 stars

    Not just a surge protector but also a power bank.

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    Posted .
    Owned for 1 month when reviewed.

    Since we keeping losing power and afraid of power surges I ended up getting this to help protect my Wife and daughters desk top. Even when the power goes out this is also a power bank and still has power to power what ever is pluged into it. Bought 2 first and might have to go back to to more.

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

      Glad to hear that the 2 units meet your needs and are working as intended. Thank you for your review! CyberPower