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 1 Showing 1-20 of 72 reviews
Rated 5 out of 5 stars
Plenty of power for basic entertainment system
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This reviewer received promo considerations or sweepstakes entry for writing a review.
After charging this unit for the suggested eight hours, I plugged in most of my entertainment devices into the power-backup outlets, including TV, sound bar, Blueray player, cable box, cable Internet router, and an extra router for home security. I then turned on the unit and all of the above devices, and set a DVD to start. All of that registered as using only up to 20% of the battery power available, for up to 15 minutes. I later went to my circuit breaker box and turned off the power to that area of the room several times, and the unit worked like a charm, keeping everything on even with no lights. Granted, the unit has an extremely low joules rating, compared with normal surge suppressors, but I have a full-house surge suppressor, so I'm cautiously confident. Also, the LED panel is easy to read and figure out. So far, I'm very pleased!
This review is from CyberPower - 850VA Ecologic Battery Back-Up System - Black
I would recommend this to a friend
Rated 5 out of 5 stars
Terrific to Use
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
This was the perfect Surge and Battery Back-Up System all-in-one. It was purchased specifically to be used only with a new Samsung QLED 55" Television and Samsung 3D Surround Sound Bar, and Wireless Samsung Woofer and some other items associated with this system. My building has very good electric current regulation, however, there can be occasional small "spikes" or "surges" and/or loss of power for a minimal time. This keeps the power smoothly flowing to my entertainment system, even with an occasional spike/surge in power; plus, gives me more than enough time to turn off all devices if power goes out momentarily. Highly Recommend.
This review is from CyberPower - 850VA Ecologic Battery Back-Up System - Black
I would recommend this to a friend
Rated 5 out of 5 stars
Great Power Value
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This reviewer received promo considerations or sweepstakes entry for writing a review.
Price and sophistication of UPS's have each improved since the last time I've purchased. The capacity is nice ampere-hour wise, and the lcd readout yields useful information. Output voltage and time remaining are among the most useful. Startup and shutdown is quicker than my last units.
This review is from CyberPower - 850VA Ecologic Battery Back-Up System - Black
I would recommend this to a friend
Rated 5 out of 5 stars
Very reliable power source
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This reviewer received promo considerations or sweepstakes entry for writing a review.
This power source backs up my office in Washington, D.C. That has approximately 10 employees. I have the server and router plugged into this source and it has done a wonderful job in case the power goes out. The beeping sound alarms you but is not overbearing
This review is from CyberPower - 850VA Ecologic Battery Back-Up System - Black
I would recommend this to a friend
Rated 5 out of 5 stars
Works as advertised.
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This reviewer received promo considerations or sweepstakes entry for writing a review.
Kept my PC on during a power surge. I believe my PC and monitor use a calculated 380W under heavy load. The price was a bit high and I was upset to find a better model on sale a week after I ordered this, but oh well.
This review is from CyberPower - 850VA Ecologic Battery Back-Up System - Black
I would recommend this to a friend
Rated 5 out of 5 stars
I've had this for a while now
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This reviewer received promo considerations or sweepstakes entry for writing a review.
Works great! Power to my house has went off a few times and this device has kicked in to keep my computer up, giving my time to shut it down.
This review is from CyberPower - 850VA Ecologic Battery Back-Up System - Black
I would recommend this to a friend
Rated 5 out of 5 stars
Quick-Response Battery Back-Up!
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Posted . Owned for 2 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Previous to this, I had the CyberPower 650, which left me pretty satisfied. It lasted over 7 years, even though I was told they lasted about 3-5 years. Before that, I'd had another well known brand that was good, but whenever our power went off, its back-up reaction wasn't quite fast enough to keep the DishNet receiver from rebooting! So, when I got the CP650 and discovered that it saved the receiver from rebooting, I knew which brand to go for the next time!
This time, I went for the CP850VA because it could handle more power and it also has more inputs. Another well known place had it for cheaper, but used Best Buy's price matching to get it for the same price and BB's delivery was several days faster (plus, they're better for getting tech help). There was a brief moment of power loss about a week ago, so I've already seen it kick into action (with no Dish receiver problem).
Actually, my 650 has been put to new use, but in another area with less of a load for it (the old battery is now a bit too weak for my AV setup, but still able to do much of its thing)! The 850 is actually more than I need, but possibly it will last even longer before the battery weakens enough to become a problem! Might have to wait 7 years to find that out, though. :-)
This review is from CyberPower - 850VA Ecologic Battery Back-Up System - Black
I would recommend this to a friend
Rated 5 out of 5 stars
Great system for back-up!
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
The LED display is why I bought this.Having all current information displayed works great! There is also a nice "beep" whenever you turn (off or on) the system. Easyto use , easy to setup, and does not take up much space(small footprint).
This review is from CyberPower - 850VA Ecologic Battery Back-Up System - Black
I would recommend this to a friend
Rated 5 out of 5 stars
Works as advertised
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This reviewer received promo considerations or sweepstakes entry for writing a review.
This is one of the few surge protector/battery back ups that had 12 usable plugs. And properly spaced so that different sized plugs can fit. I would buy this product again. I feel that the quality of CyberPower has gone up while APS may have declined.
This review is from CyberPower - 850VA Ecologic Battery Back-Up System - Black
I would recommend this to a friend
Rated 5 out of 5 stars
Excellent Power Backup.
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This reviewer received promo considerations or sweepstakes entry for writing a review.
Great piece of equipment, easy to use, reliable, and pretty cool looking.
This review is from CyberPower - 850VA Ecologic Battery Back-Up System - Black
I would recommend this to a friend
Rated 5 out of 5 stars
Excellent UPS for a PC
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This reviewer received promo considerations or sweepstakes entry for writing a review.
I have one of these for my main computer and one for my home server. The software is extremely straight forward and easy to use and the desktop widget is a nice addition. The widget can be customized to show real time information in a number of ways, including how many watts are currently being used by the system. I've only had them for about a month now, so I'm not sure how these will last, but so far so good.
This review is from CyberPower - 850VA Ecologic Battery Back-Up System - Black
I would recommend this to a friend
Rated 5 out of 5 stars
Good to have if the power goes out
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This reviewer received promo considerations or sweepstakes entry for writing a review.
My house went dark once while I was in the middle of project and I did not have a UPS. I lost a lot of data and had to rebuild my project from scratch. That is why I believe a good UPS for my desktop is essential. I've owned several Cyber Power UPS systems and trust them to give me the time I need to save my work during a power outage. I recommend Cyber Power because It is reliable and economical.
This review is from CyberPower - 850VA Ecologic Battery Back-Up System - Black
I would recommend this to a friend
Rated 5 out of 5 stars
I like it
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This reviewer received promo considerations or sweepstakes entry for writing a review.
Has a lot of outlets for what you will need on a home office too !
This review is from CyberPower - 850VA Ecologic Battery Back-Up System - Black
I would recommend this to a friend
Rated 1 out of 5 stars
HORRIBLE
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Posted . Owned for 1 year when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Just bought this 9 months ago and didn't protect against its first power surge. PS5 no longer powers on. Vizio TV with 4 HDMI ports, Xbox Series X and DirecTV box all had their HDMI ports fried. Have to get everything repaired. The Surge Protector still works though but they apparently don't cover lightning damage with this equipment warranty. Even though it's supposed to protect against these kinds of things. Our modem/router stopped working correctly but powered on although that was connected to a different surge protector. Only other things in the house affected were the HDMI ports on a 14 year old TV and an older DirecTV box that were plugged directly into outlets. Standard power strips seemed to handle it better than this Cyberpower unit.
Used the Battery Backup once a while back when the power was out which was a nice feature but obviously not important if this thing can't protect against surges.
Electronics were all plugged into the best outlets on the surge protector and the only things on at the time were the TV, DirecTV box and Soundbar, which still works fine even though that was connected HDMI. Game consoles were completely off and not in rest mode.
Eco Mode saves some power but the blinking green light is annoying if used in a bedroom, had to put something small over it. Would recommendation checking out other brands.
This review is from CyberPower - 850VA Ecologic Battery Back-Up System - Black
No, I would not recommend this to a friend
Brand response from TechSupport
Posted .
Hello Patrick, Have you submitted a ticket to Cyber Power Claims or technical support? We would like to gather more information on this incident. Please reach out to our support team at 877-297-6937 and we’d be happy to assist. We hope to hear from you!
Rated 5 out of 5 stars
Good and dependable
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Posted . Owned for 2 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Used this one in particular for several devices at one time. After a few weeks, and having it charge for about 24 hours, it has been working just fine. Apple tower, screen, scanner and printer all connected with no hiccups. Occasionally, will connect a phone charger. I have never had everything activated or working all at once, that may not be recommended unless its higher than 1,000VA, in my opinion. Overall, very good and dependable. This is my 5th I've purchased for the office spaces.
This review is from CyberPower - 850VA Ecologic Battery Back-Up System - Black
I would recommend this to a friend
Rated 5 out of 5 stars
CyberPower is the best
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
I've tried other Battery Back-up Systems, but CyberPower beats them all in performance, technology and price.
This review is from CyberPower - 850VA Ecologic Battery Back-Up System - Black
I would recommend this to a friend
Rated 5 out of 5 stars
Invisible workhorse
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This reviewer received promo considerations or sweepstakes entry for writing a review.
This is the second unit I've purchased in the past few years. I previously purchased one for a setup in the master bedroom.We tend to have momentary power outages in this area during the summer months due to thunderstorms. When this happens all the electronic equipment resets including my 4k television and cable tv box. The reset can take up to an annoying 10 minutes, and then 5 minutes later it might happen again. This ups, which I installed in the living room, keeps power to these units preventing a reset.
This review is from CyberPower - 850VA Ecologic Battery Back-Up System - Black
I would recommend this to a friend
Rated 5 out of 5 stars
Easy implamenation.
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This reviewer received promo considerations or sweepstakes entry for writing a review.
Easy setup. The only thing to watch out for it keep in mind the size make sure it will fit where your going to put it.
This review is from CyberPower - 850VA Ecologic Battery Back-Up System - Black
I would recommend this to a friend
Rated 5 out of 5 stars
more than perfect
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Posted . Owned for 3 months when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
with all this new thing about working from home my employer provided me a desktop and it is my responsability to take a good care of it so I needed something that protects it. I found this incredible device that protected me during a storm night. The lights went out and it gave me enough time to save my work and turn it off properly.
This review is from CyberPower - 850VA Ecologic Battery Back-Up System - Black
I would recommend this to a friend
Rated 5 out of 5 stars
Convenient
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This reviewer received promo considerations or sweepstakes entry for writing a review.
This UPS has 12 outlets. Even though the outlets are staggered it is still hard to use all 12 because of the giant plugs that come with some computer equipment. I replaced two much older UPS's with this one freeing up some desktop space. I like the info it provides - battery run time, %capacity, etc
This review is from CyberPower - 850VA Ecologic Battery Back-Up System - Black