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 5 Showing 81-100 of 1,387 reviews
Rated 4 out of 5 stars
Bought two - one worked, one didn't
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This reviewer received promo considerations or sweepstakes entry for writing a review.
I purchased two of these units. Got them home and plugged them in for 8 hours+ as directed before using them to charge the batteries. Plugged in my devices and thought nothing of it until the first power flicker happened the next day. One unit stayed up fine, the other immediately went down as if it had no battery at all. Disconnected everything and checked it to make sure I had plugged my devices into the proper outlets (I had) and determined the unit to be defective. Hey, it happens, and I returned it for an exchange. Got the replacement unit home and so far, so good. Deducted one star due to the defective unit and the fact that these units, while they work, don't seem to be of the same quality as say, an APC. Of course, for the price, it's perfectly adequate.
I would recommend this to a friend
Pros mentioned:
Battery life
Rated 4 out of 5 stars
So far so good...
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This reviewer received promo considerations or sweepstakes entry for writing a review.
Performed a quick run test after full charge. Got better than expected offline runtime despite being loaded close to capacity. So long as the battery holds up as warranted should be good to go. Construction feels solid.
I would recommend this to a friend
Pros mentioned:
Battery life
Rated 5 out of 5 stars
Well rounded product
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This reviewer received promo considerations or sweepstakes entry for writing a review.
Great product. It kept my modem and router going when my power went out long enough for me too casually finishv what I was doing and then power down the laptop. Exactly what I wanted it for!
I would recommend this to a friend
Pros mentioned:
Battery life
Rated 5 out of 5 stars
NEVER LOSE POWER
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This reviewer received promo considerations or sweepstakes entry for writing a review.
My old UPS needed to be replaced, Best Buy had battery back ups in stock at great price price. I have peace of mind knowing I will not lose power when the power goes out.
I would recommend this to a friend
Pros mentioned:
Surge protection
Rated 5 out of 5 stars
Works great
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This reviewer received promo considerations or sweepstakes entry for writing a review.
Wanted to be safe with a new computer and potentially loosening circuits or whatever causes power irregularities...this seems to have done the trick and helps protect sensitive equipment
I would recommend this to a friend
Pros mentioned:
Performance
Rated 5 out of 5 stars
Work well from experience
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This reviewer received promo considerations or sweepstakes entry for writing a review.
Have had 4-5 essentially identical devices over the last few years. While I wish the internal batteries lasted longer, these have been reliable; I currently have two others in service.
I would recommend this to a friend
Pros mentioned:
Surge protection
Rated 4 out of 5 stars
excllent protection for my mac
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This reviewer received promo considerations or sweepstakes entry for writing a review.
this is a reliable system for home protection of my apple mac it is unobtrusive and i don't worry about loss of service or data due to outages while it provides the normal surge protection
I would recommend this to a friend
Pros mentioned:
Battery life, Performance
Rated 5 out of 5 stars
Great Product worth the money!
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This reviewer received promo considerations or sweepstakes entry for writing a review.
I bought this product and it is wonderful and it is performing as expected. No problems and it hold the power the right amount of time to shut down my computer in time after the power has gone out. I did test it on a gaming rig, and it was just enough to shut down the computer. It kept it on for about 5 minutes before it had lost power. No problems performed as stated on the box and piece of mind knowing its there is nice.
I would recommend this to a friend
Pros mentioned:
Battery life
Rated 5 out of 5 stars
Great in case of power outages
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This reviewer received promo considerations or sweepstakes entry for writing a review.
I bought this to set up in our home business in Honduras, power outages are pretty common there, so this definitely comes in handy to ba able to turn off everything properly.
I would recommend this to a friend
Pros mentioned:
Price
Rated 5 out of 5 stars
Nice product at a reasonable price
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This reviewer received promo considerations or sweepstakes entry for writing a review.
This is a quality power supply with a reasonable amount of back up power for those inevitable power surges/outages. Well made. Purchased it on a daily special at a great price.
I would recommend this to a friend
Rated 5 out of 5 stars
A little back up for power drops.
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This reviewer received promo considerations or sweepstakes entry for writing a review.
After a few storms came through my area and had the power going on and off I decided I need more than a power strip to protect my computer and monitor so I added this. Has enough backup power to keep my stuff from shutting off if lights flicker.
I would recommend this to a friend
Pros mentioned:
Battery life
Rated 5 out of 5 stars
Nice backup for the money
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This reviewer received promo considerations or sweepstakes entry for writing a review.
My old backup died and I purchased this one. It has worked well for me at home and I have one just like it at work that works well which is why I decided to purchase this one.
I would recommend this to a friend
Pros mentioned:
Performance
Rated 5 out of 5 stars
Great Product at Reasonable Price
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This reviewer received promo considerations or sweepstakes entry for writing a review.
I have had this brand before and to date not a bit of trouble with 3 models in different locations. Their price point is way more competitive and the features are adequate.
I would recommend this to a friend
Pros mentioned:
Price
Rated 5 out of 5 stars
Excellent and Affordable Unit!
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This reviewer received promo considerations or sweepstakes entry for writing a review.
We were having issues with storms causing on PCs to power off and cause data loss. These units solved the issue and were priced very reasonable. We are happy that we got these.
I would recommend this to a friend
Pros mentioned:
Price
Rated 5 out of 5 stars
Good UPS for the money
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This reviewer received promo considerations or sweepstakes entry for writing a review.
I usually by APC UPS but have recently been buying some CyberPower for the last year or so now. Have not had any issues as of yet and CyberPower 450VA is great for the price
I would recommend this to a friend
Pros mentioned:
Performance
Rated 5 out of 5 stars
Really a great product
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This reviewer received promo considerations or sweepstakes entry for writing a review.
Must have for business! I have a photo booth business and I use it just in case something happens to the electrical system of location especially in an unfamiliar place.
I would recommend this to a friend
Pros mentioned:
Battery life, Surge protection
Rated 4 out of 5 stars
Battery Backup and Surge Protector
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This reviewer received promo considerations or sweepstakes entry for writing a review.
Great product, has plenty of plugins available with half on battery backup, and the entire power strip is surge protected. There are a couple of areas that I was disappointed with; the battery backup only lasted 15 minutes and it beeps continuously while its on backup power (became annoying pretty quickly), but with the extra minutes it provided I was able to save my work and shut down my systems safely. Bottom line, it did the job.
I would recommend this to a friend
Pros mentioned:
Battery life, Surge protection
Rated 4 out of 5 stars
My second CyberPower Unit
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This reviewer received promo considerations or sweepstakes entry for writing a review.
Excellent protection from surges and the battery backup works as advertised. My first one lasted over 10 years before the battery gave out. Only complaint is that the plug outlets on the unit need to be spaced out more. A lot of the connectors from Wifi units, modems, speakers have odd shaped connectors that prevent them from being placed next to each other in the current plug outlets on the Unit.
I would recommend this to a friend
Pros mentioned:
Price
Rated 5 out of 5 stars
Great for basic protection
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This reviewer received promo considerations or sweepstakes entry for writing a review.
I’m a firm believer that you need to properly protect your electronics. This surge protector came in at the right price point and it was a no brainer
I would recommend this to a friend
Rated 4 out of 5 stars
GREAT BACK UP SYSTEM FOR PRICE
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This reviewer received promo considerations or sweepstakes entry for writing a review.
THIS WORKS VERY WELL TO BACK UP COMPUTER AND REUTER AT A REASONABLE PRICE. LIKED THE 8 PLUGS. HAVE USED THIS BRAND IN THE PAST AND IT LASTED A LONG TIME. ONLY DRAWBACK IT IS LARGE AND HEAVY