Customer Ratings & Reviews
- Model:
- SX650U
- |
- SKU:
- 6239409
Customer reviews
Rating 4.7 out of 5 stars with 1781 reviews
(1,781 customer reviews)Rating by feature
- Value4.6
Rating 4.6 out of 5 stars
- Quality4.6
Rating 4.6 out of 5 stars
- Ease of Use4.8
Rating 4.8 out of 5 stars
Customers are saying
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.
Rated 3 out of 5 stars
CyberPower backup
||Posted . Owned for 3 weeks when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.Didn't have in stock the brand I wanted. Works ok and should get the Job done.
I would recommend this to a friendBrand response from TechSupport
Posted .Thank you for submitting your review!
Rated 3 out of 5 stars
good backup
||Posted . Owned for 10 months when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.I bought this backup battery when I bought my new computer, it had the ports I needed and USB port
I would recommend this to a friend- Cons mentioned:Noise
Rated 2 out of 5 stars
Beeps all the time
||Posted . Owned for 1 month when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.It always beep when I use the fax which is connected to it
No, I would not recommend this to a friendBrand response from TechSupport
Posted .Hello,
Thank you for taking the time to write a review. It appears your fax machine may be overloading the UPS, if you would like to troubleshoot our technical support team is always happy to help. You can reach us at 1.877.297.6937 (option 1), we look forward to hearing from you.
Rated 1 out of 5 stars
Product Good - Customer Service Bad
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.The product itself has been without issue until this past month - it no longer works. This is about Best Buy customer service. It has a 3 year mfg. warranty with 6 months left - I was told by IM contact with Best Buy to return it to the store. I also called Best Buy and went through the ridiculous phone maze and finally got to someone who then transferred me to a Geek Squad tech who also told me to return it to the store. When I did return it to the store, they tell me there's nothing they can do - but he did verify it was still under warranty. as much as I dislike Wal-Mart, when my gift card runs out I'm done with Best Buy.
I would recommend this to a friendBrand response from TechSupport
Posted .Hello Jeff, Sorry to hear about your experience. Please reach out to Cyber Power tech support at 877-297-6937 and we'd be more than happy to assist. We hope to hear from you!
- Pros mentioned:Performance
Rated 4 out of 5 stars
Nice to have after my old computer crashed
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.Seems to work fine. I needed a back up system for the business.
I would recommend this to a friend Rated 5 out of 5 stars
So far working out great
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.With so much construction in our neighborhood right now, we were having a lot of powetr surges,now we no longer have to worry about our computer, printers and all the other important electronics that go with them.
I would recommend this to a friend- Cons mentioned:Heat
Rated 1 out of 5 stars
Defective UPS
||Posted . Owned for 1.5 years when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.Malfunction during first power outage whole unit short circuited causing it to over heat if I hadn't been home at time unit could have possibly caused a Fire Manufacturer sent a replacement unit at no charge
No, I would not recommend this to a friend Rated 3 out of 5 stars
Ok for it's size
||Posted . Owned for 1 month when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.The USB ports are not "smart" ports and share power between them.
I would recommend this to a friendBrand response from TechSupport
Posted .Hello,
Thank you for taking the time to write a review. We appreciate the feedback and will share it with our product development team.
Rated 5 out of 5 stars
Works well
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.Glad I got this with the new PC. It's been tested twice already in the first month of use and it works. It's used with a 26" HP Pavilion, a laptop and a lamp. It kept the power on through the outages.
I would recommend this to a friendRated 2 out of 5 stars
Surprisingly difficult to use
||Posted . Owned for less than 1 week when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.Surprisingly difficult to use. It only seems to work when you plug it in, if you don’t plug it in then it just beeps constantly. I’m sure it’s a user error, but why should it be this difficult to use? I returned it
No, I would not recommend this to a friendBrand response from TechSupport
Posted .Hello Notgiod. It sounds like you might be looking for a power station. The SX650U is an Uninterruptable Power Supply (UPS) and is not designed to be a portable battery back up. If you have any questions please reach out to our support team at 877-297-6937 and we'd be happy to assist.
Rated 3 out of 5 stars
Good
||Posted . Owned for 3 weeks when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.good shredder, gets the job done. could have more juice.
I would recommend this to a friendRated 5 out of 5 stars
Good Product
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.I've used these over the years and they seems to run for about 2 years and then eventually die, you can get new batteries for them but not much cheaper than getting a new shinny unit.
I would recommend this to a friendRated 3 out of 5 stars
Excellent. Necessary.
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.I like this item. Only negative I have is that it's a bit bulky.
I would recommend this to a friendRated 3 out of 5 stars
Works
||Posted . Owned for 1 month when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.Replaced old one that died and it works decent enough
I would recommend this to a friendRated 4 out of 5 stars
gets the job done
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.I've recently bought this product as a backup for my security camera system. I had a power outage 2 months later and this device worked very well. you'll get a loud beeping sound from it when the back-up battery system is working So far, so good. This device gets the job done.
I would recommend this to a friendRated 2 out of 5 stars
Poor quality on the battery
||Posted . Owned for 1 year when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.I had bough 2 of this, and both are already not holding the charge, now I wish I had bought the extended warranty.
No, I would not recommend this to a friendBrand response from TechSupport
Posted .Most UPS batteries have an expected life of 3-5 years, but other factors can also shorten the life of the battery, such as temperature, humidity, and frequency of power event. Thank you for your review!
Rated 1 out of 5 stars
BUYER BEWARE
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.Bought this for battery backup in case of power outage. Only have wifi router, cordless phone, and lamp plugged in to it. First power outage - no juice whatsoever, and constant beeping indicating that battery was low - even though it has been plugged into a live outlet since date of purchase. CyberPower Company was non-responsive to my inquiry while not even 1/2 way through warranty period. I do NOT recommend this item.
No, I would not recommend this to a friendBrand response from TechSupport
Posted .Hello Joe, Apologies on not receiving your support inquiry. Our support team is typically very responsive. If you have a moment, please reach out to us directly at 877-297-6937 and we'd be happy to assist. We hope to hear from you!
Rated 5 out of 5 stars
Att phone
||Posted . Owned for 3 weeks when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.Will not work with my phone not compatible. Not salespers fault
I would recommend this to a friendRated 1 out of 5 stars
Used this on a light load, for two weeks.
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.Used this to keep power to my cable modem box, and router signal booster. It went out in about two weeks. The unit powered off, and there had been no power failure. An alarm was sounding and it wouldn't reset or restart, and the alarm kept going. Tried everything. Unplugged and returned to the store. I noticed that the insides were rattling around when I boxed it up. It had not been dropped. Junk UPS. Do not buy this. $50 wasted, but Best Buy refunded it. It was pas the 30 day refund date but I had been on vacation for two weeks during this time.
No, I would not recommend this to a friendBrand response from TechSupport
Posted .Hello Skorman,
Thank you for taking the time to write a review, we value your feedback. If you have any questions in the future please do not hesitate to contact us. Our Technical Support team is always happy to troubleshoot and if appropriate process a warranty service, they can be reached at 1-877-297-6937 (press 1).
Rated 1 out of 5 stars
Battery backup does not work
||Posted . Owned for 2 months when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.Power to the surge protector side. No power to battery backup side. Tried calling customer service three times. Sat on hold for 20 minutes and left a voice mail. No response to voice mail. Stuck with a product that does not fulfill its primary purpose of providing power during a power outage to my 88 year old mother in laws power recliner.
No, I would not recommend this to a friendBrand response from TechSupport
Posted .Hello Kat, Our support team is available Monday through Friday from 7AM-6PM CST and can be reached 877.297.6937. Tickets can also be submitted on the CyberPower Systems website if you prefer communication by email. Please reach out to us at your convenience and we'd be more than happy to help. We look forward to hearing from you!




