Customer Ratings & Reviews

I love these UPS. I have 3 of them now and have not had an issue with any of them.

I love the digital interface of this product. It gives it character and allows me to see how well the product is functioning.

CyberPower - 850VA Ecologic Battery Back-Up System - Black is good backup power

Works great as described no problems Does the job especially for home office

This unit is easy to set up and works great. It has already saved me from a sudden power outage.

I haven't experience a power outage yet it seems to work fine for now.

Great outlet spacing for those stupidly shaped plug-in power supplies. 5 stars if it had USB charging ports.

CyberPowerPC - EC850LCD Ecologic 850VA/510W Energy Efficient LCD Desktop ECO UPS is very good

Great ups for the price. Haven't tested the battery function as we haven't had a surge or power outage yet but I anticipate it will do the job.

This is a very nice backup battery to keep all your computers safe from shock.

so far, this has been a good purchase, no issues and secure I will not loose work on computer with a power outage

Already either lost power or had brownouts multiple times since I installed it. Worked great!

Occasional electrical outlets are a pain, this keeps machines running smoothly

It is a good product. Work as advertised. I have other products from this company.

We had a lot of brief power outages/brown outs over the holiday season. On top of that, our grid is not the most reliable even in the best of times. My computer was spontaneously shutting down right in the middle of using it for no apparent reason, so I thought I'd try a UPS. Bingo! No more spontaneous shut-downs. I like how the display can show current voltage. Very happy with this purchase.

This model has plenty of outlets for heavy duty and light weight products.

I purchased this Cyberpower ECL850LCD UPS based on the reviews I found on bestbuy.com. Having previously owned only APCC branded UPS, I was a bit unsure how this would perform. Eight months later I'm still pleased with the purchase and would recommend this to anyone who is in need of a UPS. It seems to be very sensitive to power spikes and is quick to respond.

I love it and it works perfect and I like the led lights on it.

I bought this primarily to keep my security camera running even on power failure. I live in Florida and hurricane season will be coming soon, so I am expecting power surge power interruption. I am expecting this will work as expected.

Good system, but sporadic problems with backup working.