Customers have good things to say about the 650VA Battery Back-Up System, especially its long battery life, overall performance, and ease of use. Many appreciate the reasonable price and adequate surge protection, as well as its convenient size and handy USB ports. Some customers have noted minor issues such as a slight humming noise and, in rare cases, random alarm activations. A few have mentioned its weight and isolated incidents of overheating.
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 1,781 reviews
Rated 5 out of 5 stars
Great backup
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Posted . Owned for 2 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Good backup with plenty of outlets to plug in all of your appliances
I would recommend this to a friend
Pros mentioned:
Battery life, Ease of use
Rated 5 out of 5 stars
CyberPower Back Up, great inexpensive unit.
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Replaced old unit that I could not get to work, even with new battery. This CyberPower unit was easy to install and seems to be working well. Have had several power dips and backup handled them, items plugged in did not turn off. Appears to be a good unit for my computer, router, modem, and external hard drive, which are all connected.
I would recommend this to a friend
Pros mentioned:
Performance
Rated 5 out of 5 stars
CyberPower - 650VA Battery Back-Up System
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Purchased this exact same unit in February of 2018. Obviously, it “says something” that I am purchasing the same model following the battery failure of the first.
Was a little surprised that attempting to purchase a replacement battery was NOT an option. It was not clear to me whether I now have that option subsequent to making this purchase. Regardless, I’ve pretty well decided that I wouldn’t go that route even if it were an option. These days, the best deals can routinely be found in conjunction with NEW purchases.
Even in the five years I’ve owned the now-failed unit, we haven’t experienced that many power outages — and, when we did, the unit performed precisely as advertised.
I have kept the failed unit. While the battery-backed up receptacles no longer function, the other four “protected” receptacles still work perfectly.
Bottom line: When I purchased the unit in 2018, the price was $65.99. It has increased in price to $79.99…but, Best Buy matched a competitor’s price making it $59.99! [Over the years, I have always been extremely pleased with Best Buy honoring its price matching policy.]
This was the best price for a battery backup of this size and functionality.
I would recommend this to a friend
Pros mentioned:
Battery life, Surge protection
Rated 5 out of 5 stars
A great product for everyday computing.
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
I have purchased Cyberpower a number of times for both my wife and myself over the years. We use it for everyday computing to allow us to power down our computers and to finish and save our task at hand. You have 4 outlets for battery backup and 4 for surge protection only. As far as I am concerned it is an essential part needed for your computers. You will be glad that you had one the first time your power just shuts down and you lose all the information you were working with before you saved it.
I would recommend this to a friend
Pros mentioned:
Battery life, Price
Rated 5 out of 5 stars
Much improved
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
I last bought a battery back up about 5-7 years ago. I didn't realize how much they had improved with regard to size, price and length of battery power.
I would recommend this to a friend
Pros mentioned:
Ease of use, Performance
Rated 5 out of 5 stars
Nice to have during storm season
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Posted . Owned for 2 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Works as intended. Easy to set up. Makes fun noises sometimes.
I would recommend this to a friend
Pros mentioned:
Ease of use
Rated 5 out of 5 stars
Great purchase
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Product was easy to install. Was compact and fit perfectly in a small space. Had multiple outlets and works well with my existing hardware.
I would recommend this to a friend
Pros mentioned:
Surge protection
Rated 5 out of 5 stars
Solid Battery Backup Surge Protection
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Great product at a great price! I have been needing a battery backup surge protector for some time and this one was just the right size. We have our cable modem and router plugged into it. That way if power goes out we at least still have the internet, since our internet is through the cable company. The only thing to note is that only one side is battery backup, but both sides offer surge protection.
I would recommend this to a friend
Pros mentioned:
Battery life, Ease of use
Rated 5 out of 5 stars
CyberPower battery backup
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Easy to set up. Has enough outlets for me. Compact size. Has a battery backup. What else is there to say?
I would recommend this to a friend
Pros mentioned:
Performance
Rated 5 out of 5 stars
Good product
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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.
The unit has held up for several years with no problems. I have used it for years and it has functioned perfectly.
I would recommend this to a friend
Pros mentioned:
Battery life, Price
Rated 5 out of 5 stars
Just what I wanted and needed.
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
It is small, compact and has multiple plug-in ports with a lengthly power back-up at a reasonable price.
I would recommend this to a friend
Pros mentioned:
Battery life, Performance
Rated 5 out of 5 stars
Does the job
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
We buy these constantly as our office location is remote and we have a lot of power "anomalies". I've had the best longevity with Cyberpower products and typically prefer them over other brands. On average we get about 2.5 years of life from them and when they finally do fail I send the batteries off to a recycler. Overall they are good reliable products and will protect your computer from most power anomalies.
I would recommend this to a friend
Pros mentioned:
Ease of use
Rated 5 out of 5 stars
battery backup
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
easy peasy, it is a necessary device when the power goes out
I would recommend this to a friend
Pros mentioned:
Ease of use, Performance
Rated 5 out of 5 stars
Excellent for small home office!
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Purchased for small home office and works extremely well. Set up is extremely easy and immediately starts to work as soon as the battery is fully charged. I’ve had a few of these over the years specifically this brand and they’ve generally lasted way longer than I thought they would considering Florida has so many lightning strikes. Excellent product!
I would recommend this to a friend
Pros mentioned:
Battery life
Rated 5 out of 5 stars
Used in non air conditioned garage in Florida 5's.
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
I use this battery backup on my cameras and dvr for home security, it keeps the cameras and dvr online along with my wireless router and modem so even if the power goes out I can monitor my 8 cameras from my mobile device and also know a recording is still taking place. The unit is located in a non air conditioned garage in Florida where temps get into the feels like of 120 degrees and the product works amazing.
I would recommend this to a friend
Pros mentioned:
Surge protection
Rated 5 out of 5 stars
CyberPower - Small, but Tough!
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Posted . Owned for 1 week when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Cyber power has reasonably priced back-up and surge protection for laptops. I purchased this one as a replacement. My last CyberPower surge protection unit took some good surges and blew one side. The other side still works. It may be small, but it's tough! It protected my laptop and that's what really counts!
I would recommend this to a friend
Pros mentioned:
Surge protection
Rated 5 out of 5 stars
Excellent Battery Backup
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
Anyone who has a computer needs a battery backup system. It protects against power surges which can ruin a computer, plus gives some additional operating time if the power goes out. All our computers are on backup systems. I recommend a battery backup rather than just a surge protector, because if you're in the middle of working on something when the power fails, you won't lose your work, as the battery kicks in, and gives you operating time. CyberPwer makes great back up systems - we've used them for years.
I would recommend this to a friend
Pros mentioned:
Performance, Price
Rated 5 out of 5 stars
Outstanding performance, great value-
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
Outstanding performance, great footprint, great value and multiple function is cool.
I would recommend this to a friend
Pros mentioned:
Battery life
Rated 5 out of 5 stars
Keeps your data safe from power outages
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Posted . Owned for 4 months when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
I bought this for my ps5 as I live in a place with common thunderstorms and power outages and it gives me time to save my game and turn it off when the power goes out so my data doesn't get corrupted. If you want to play when the power goes out, this isn't the one, but if you need it to protect your electronics, then it's perfect. Comes with a cable you can plug into a PC and if you download their official software you can see how much time your battery will last if the power goes out. Great product, highly recommend
I would recommend this to a friend
Pros mentioned:
Surge protection
Rated 5 out of 5 stars
Battery is excellent for a reasonable price
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
This batter fits the needs perfectly for a desktop computer station. Four outlets are battery supported, four are not, but all eight are surge protected. It works very well.