Customers are pleased with the 450VA Battery Back-Up System's long battery life, strong performance, compact size, and affordable price. Many appreciate its surge protection and ease of use, finding it simple to set up and operate. While some users wish for a USB port and find the unit's weight or alarm to be a minor drawback, the overall feedback is positive. The number of outlets is also frequently praised as sufficient.
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 2 Showing 21-40 of 1,926 reviews
Rated 4 out of 5 stars
Power bank
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Good product, powered my personal computer well along with monitor
I would recommend this to a friend
Rated 3 out of 5 stars
Bs
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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.
It’s was good for 2 years after 2 years the battery life when to 0%
No, I would not recommend this to a friend
Brand response from TechSupport
Posted .
The unit comes with a 3-year warranty from the date of purchase. Please reach out to our Technical Support team at 1-877-297-6937 (press 1) and we'd be happy to assist. Thank you for your review!
Rated 5 out of 5 stars
Good little stopgap.
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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.
Just the right size for maintaining the internet connection.
I would recommend this to a friend
Rated 4 out of 5 stars
Power surge battery powered device
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
It does supply power, but only for a limited amount of time
I would recommend this to a friend
Pros mentioned:
Performance, Size
Rated 5 out of 5 stars
Excellent, simple peace of mind!
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
Of course! Here is a positive review you could use:
**Title:** Excellent, simple peace of mind!
**Review:**
I got this to keep my modem and router running during the frequent power flickers we get during thunderstorms, and it's been fantastic. Setup was incredibly easy; I had it unboxed and protecting my equipment in less than five minutes. It's compact and sits right behind my desk without being noticeable. We had a brief outage last week, and it kicked in instantly, keeping my internet connection alive without a single hiccup. For such a reasonable price, the security and stability it offers are a no-brainer. Highly recommended for anyone who wants to protect their electronics and stay online.
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.
This reviewer received promo considerations or sweepstakes entry for writing a review.
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!
Pros mentioned:
Performance, Size, Surge protection
Rated 5 out of 5 stars
Love this Back-up
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
This is a must-have for protecting your electronics! It delivers reliable power during outages and smooth surge protection, keeping my devices safe and running without a hitch. Compact and easy to set up, it’s perfect for home or office use. It's already saved me a couple times. Great value for peace of mind!
I would recommend this to a friend
Pros mentioned:
Performance, Price, Size
Cons mentioned:
Usb port
Rated 5 out of 5 stars
Nice Option if you have Power Drops
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
I bought this for my iMac and Wifi router. My neighborhood has power outages for a few minutes almost weekly, and as frustrating as that is from losing unsaved work and rebooting time, I am fortunate this hasn't caused damage to my equipment. I feel much more calm having this battery in place; we've had several power drops in the weeks since I purchased this and I've had no downtime as a result. It's quiet, compact, and worth the cost. This model doesn't have the USB port that my computer can use to monitor uptime, and I regret that I didn't purchase a model that has that.
I would recommend this to a friend
Pros mentioned:
Battery life, Size, Surge protection
Rated 5 out of 5 stars
Works great
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Small but powerful. Easy to use, small enough to not to be a nuisance, great surge protection, worked great during 2-hour power outage, affordable. Very happy with purchase.
I would recommend this to a friend
Pros mentioned:
Battery life, Performance, Size
Rated 5 out of 5 stars
Good
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
This is reasonably compact for a UPS, and has enough outlets and battery to support a desktop + 2 large monitors + misc accessories in case of power surge. Reliable so far, but only had it slightly over a month. Will update with any issues.
I would recommend this to a friend
Pros mentioned:
Battery life, Performance, Size
Rated 4 out of 5 stars
Great for the Price, Features more than enough
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
This is a great product. Compact, small. Good enough to keep my network hub, modem and nas working when energy goes off. This is the second I buy. Its features are all I need. And beyond the battery-backed up outlets it also has surge protected outlets. I just don't give 5 stars because the battery replacement is a little complicated. The battery of my first one laster +2.5 years - For me, it was worth.
I would recommend this to a friend
Pros mentioned:
Size, Surge protection
Rated 5 out of 5 stars
Best Compact UPS
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
This UPS power supply is one of best I've owned. It is small and can be put just about anywhere, plenty of outlets and two surge for more protection.
I would recommend this to a friend
Pros mentioned:
Performance
Rated 5 out of 5 stars
Excellent product
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
This item works great. Very easy to use. Instructions are plain and easy to follow. We temporarily lost power but I wasn't trapped in my power recliner. It works as advertised.
I would recommend this to a friend
Pros mentioned:
Battery life, Surge protection
Rated 5 out of 5 stars
Like the 2 sets of outlets
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Posted . Owned for 2 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
I use this to keep my network router and Alexa running during power outages. I like that the outlets are split into 2 sections. One section is not part of the battery backup but does provide surge protection. I plug in devices in that section that I do not wish to have loading down the battery.
I would recommend this to a friend
Rated 5 out of 5 stars
Gives you piece of mind.
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
this cyberpower 450 va battery back-up is a small but mighty addition to my setup. it’s sleek, takes up minimal space, and gives me eight well-spaced outlets—perfect for connecting my desktop, router, and a few peripherals without blocking anything else.
i’ve found it incredibly reassuring during brief outages. it provides about 90 seconds of full-load backup or around six minutes at half load—just enough for me to save my work and power down safely, or keep my internet running during quick drops.
setup was effortless. it’s plug-and-play, easy to position thanks to the long 5-ft cord, and the diagnostic leds let me know it’s working just fine.
it’s also energy efficient and certified by energy star, so it barely bumps my power usage when idle. on top of that, it protects against surges, brownouts, and lightning spikes, giving me solid peace of mind for my home office electronics.
overall, this ups strikes a great balance between price, size, and performance. whether you just want minimal protection or fast shutdown capability, this one delivers exactly what you need.
I would recommend this to a friend
Pros mentioned:
Size
Rated 5 out of 5 stars
Great price and great resource
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
This is a great resource for our home entertainment system, which includes a smart TV, router, PS5, and Switch. It was easy to install, and it doesn't take up too much space.
I would recommend this to a friend
Pros mentioned:
Battery life, Price, Surge protection
Rated 5 out of 5 stars
Perfect for short runs.
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Loaded it up so I know it will be good for about 15 minutes. Bought for bumps and surges. Printer, switch, two monitors and a computer. I have had two power bumps already. The lights in the house went off and on but the computer equipment stayed on without even a fade in power. It has paid for itself already. Normally buy APC but so far I am completely satisfied and I saved $10.
I would recommend this to a friend
Pros mentioned:
Battery life, Performance
Rated 5 out of 5 stars
I love ig
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Posted . Owned for 10 months when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
I love it. It has no flaws, and it has an extra battery, so if the power does go out, I can safely turn it off properly.
I would recommend this to a friend
Pros mentioned:
Size
Rated 5 out of 5 stars
CyberPower Battery B ack-up System Reliability
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
The compact back-up system fits perfectly on my desk behind the monitor as well as providing enough outlets to power the flatbed scanner, laptop large monitor, controller, and WIFI system. I'm hoping the new system works as well as my previous back-up system that ran trouble-free for 28 years. CyberPower made the old and new systems.
I would recommend this to a friend
Rated 5 out of 5 stars
Great UPS for minimal downtime
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Posted . Owned for 11 months when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
I love these little things. I use them as the stopgap for the cutover time between grid power and when my Powerwalls kick on. They serve the purpose of filling those microseconds when I don't want my Macs to lose power. Will they work for longer downtimes, probably not but for my use case they are cheap. They also have a +/- 4Hz allowance the Powerwalls use to shut down solar panels if I'm producing more than can be stored if I'm off grid.
Feature wise there is enough distance between plugs for larger brick items, lots of space between the rows. Fairly light for having a battery in there.
Overall great value for what they do.