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$64.99

Customer reviews

Rating 4.7 out of 5 stars with 1974 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

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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 94 Showing 1,861-1,880 of 1,974 reviews
  • Rated 3 out of 5 stars

    Under performing

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

    I was surprised at the very short time it kept my router running - only about 7 minutes.

    No, I would not recommend this to a friend
  • Rated 3 out of 5 stars

    Best bang for $$

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

    Doing what it’s designed to do. When power goes out, it instantly goes to battery power without any interruption. Using it for powering a wine cooler.

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

    Do Not Buy This

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

    I haven't had a power outage since I purchased this UPS and I only keep my alarm clock and noise machine plugged in at all times. This thing randomly shut itself off and if not for my internal clock, I would've overslept and been late for work. I turned it back on, and it shut itself off again! I did a Reddit search and apparently, this is a thing with CyberPower UPS. Highly unreliable in my experience.

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

      Hello, this product comes with a three-year warranty. Please reach out to CyberPower Tech Support directly at: (877) 297-6937 for assistance with your issue and we would be happy to assist. Thank you for your review. CyberPower

  • Rated 3 out of 5 stars

    outlet power supply

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

    It's loud and beeps too much when it needs charged. Wish it wasn't so noisey

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

    Awesome

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

    I picked up a few of these for my TVs and cable boxes for the occasional power outages the cable boxes take almost 10 min to boot up also picked up some for my cable modem and routers so my Battery powered security cameras won't loose internet for cloud back up incase something were to happen

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

    Solid supply

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

    This thing has done exactly what i need it to do. I live where the power drops out frequently for just a few seconds. I can now continue working without restarting my PC.

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

    Awesome

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    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Got this on sale and I live in a place where my power goes out regularly so this has saved my new gaming pc from being abruptly shut down on at least 7 occasions already

    I would recommend this to a friend
  • Rated 3 out of 5 stars

    Not sure how this thing works

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

    I have followed the directions but the power charge doesn’t seem to stay Very confusing

    No, I would not recommend this to a friend
  • Rated 2 out of 5 stars

    fine for home...but not on the go

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

    I think this would be fine for home...but I was looking for something as a supplement battery for my laptop when out an about with my daughter and all her activies. I run my laptop dry most days at her various camps/trainings/etc and thought this would provide me another 2 hours of life...but alas...only abou 30. I returned it.

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

      Hello BigKirk. The SE450G1 is a UPS battery backup. UPS units are not meant for on the go use. If you have any questions on the unit, please reach out to our support team at 877-297-6937 and we'd be happy to assist. CyberPower

  • Rated 5 out of 5 stars

    Works great!

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

    Works great for my needs as a short term power backup when we have a power failure and until my generator kicks in.

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

    Rated 1 out of 5 stars

    Useless & annoying

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

    I wish I could give it 0 stars. It beeps randomly, incessantly with no info on the device. Its huge and heavy for not much capacity, certainly can't support 6 things plugged in LOL. Pathetic useless paperweight. I will be returning it

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

      Hello LLB2, The SE450G1 is a 260 watt capacity unit. What kind of devices did you have plugged into the unit? Did you reach out to our support team for assistance? If not, please give us a call at 877-297-6937 and we'd be happy to assist. CyberPower

  • Rated 3 out of 5 stars

    Worked for less then a Year

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

    It works fine, but in one year the battery las 1/4 of the original time

    I would recommend this to a friend
  • Rated 3 out of 5 stars

    Ok for small devices and computers

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

    I’m sure it’s a good product but can’t put much on it. Not good for today’s good gaming computers.

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

      Hello Heidi, Heavy gaming would likely overload the unit but we do have larger capacity units available for different set up needs. If you'd like any assistance in sizing a unit, please reach our to our sales support team at 877.297.6937. Thank you for submitting your review! CyberPower

  • 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.

    A good UPS with basic features. It does have a loud beep that cannot be turned off when there is loss of power. Otherwise perfect for small devices and a computer.

    I would recommend this to a friend
  • Rated 3 out of 5 stars

    none

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

    too early to evaluate; value only clear when there's a power issue

    I would recommend this to a friend
  • Rated 3 out of 5 stars

    Needs a grounded outlet

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

    Ended up returning this product because it only works in a grounded outlet.

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

      Hello, Thank you for submitting your review. Any device that protects from surges will need a grounded outlet. If you have any questions please feel free to contact our support team at 877-297-6937 and we'd be happy to assist. We'd love to hear from you. CyberPower

  • Rated 3 out of 5 stars

    It’s a present for my wife

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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.

    Haven’t tried it but I wanted my 25 points for the review so here I am

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

    Rated 5 out of 5 stars

    Reliable Power Protection

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

    The CyberPower 450VA Battery Back-Up System in stylish black is a compact and efficient solution for safeguarding your electronic devices from power interruptions and surges. With a 450VA capacity, this battery back-up system provides enough power to keep essential devices running during brief outages, allowing you to save your work and shut down your electronics properly. The sleek black design ensures it seamlessly blends into your home or office environment. The surge-protected outlets shield your devices from power spikes, preserving their longevity. The compact size of the unit makes it suitable for desktop use, ensuring your critical devices stay powered up in case of unforeseen power disruptions. The audible alarms and LED indicators offer real-time feedback on the system's status, keeping you informed about power conditions and battery life. The built-in surge protection and automatic voltage regulation contribute to the overall reliability of the unit. While the 450VA capacity may not be sufficient for powering larger electronics for extended periods, it serves admirably for basic protection of essential devices like computers, routers, and modems. In conclusion, the CyberPower 450VA Battery Back-Up System is a cost-effective and reliable solution for protecting your electronics from power fluctuations and outages. Its compact design, surge protection features, and ease of use make it a practical addition to any home or office setup where maintaining power continuity is a priority.

    I would recommend this to a friend
  • Rated 3 out of 5 stars

    Good price, very fair

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

    It works perfectly and it’s not that expensive!!!!

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

    All 5 minutes.

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

    Lasted my PC for about 5 minutes. Total waste of money, time, and efforts.

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

      Hi Enzo,
      Thanks for your feedback on the CyberPower 450VA Battery Back-Up System. I’m sorry to hear it only lasted about 5 minutes with your PC, that’s understandably frustrating. This model is designed for basic systems and may not provide extended runtime for higher-powered setups.

      We’d be happy to help assess your power needs and recommend a UPS that better fits your system. Please reach out to our support team at 1-877-297-6937 or submit a ticket at https://www.cyberpowersystems.com/support/submit-a-support-ticket/. We’re here to help! CyberPower