Top positive review
Pay Attention to which unit is being reviewed. This is the 600 VA unit.
Reviewed in the United States on January 30, 2017
The reviews are confusing because they include reviews of a wide variety of sizes. This review is for the 600 VA model. I bought two from Amazon, one for the TV & satellite receiver and another for my wife's PC. I also own a Cyberpower 1500 VA unit for my own hardware which has a lot of external HDs and other stuff connected.
The units work well for their intended purpose. I got about 35 minutes on a 32" LCD TV, a wifi router, a 5 port switch, a Dish Satellite receiver /DVE and an external (sleeping) HD on the DVR. On my wife's Celeron PC + a 22" LCD monitor I got about 45 minutes.
I am in the boondocks in New Mexico and we have a LOT of power issues. These units work well in this environment.
One of the questions I see concerns silencing the alarms. I did not install the PowerChute software on my wife's computer, and obviously did not install it on the TV/Dish receiver. The alarm can be set to not sound via some push and hold tettings via the power button. It's explained more or less clearly in the docs that came with the unit, though the type is small and difficult to read.
The biggest issue with this unit is that to set it up you have to remove the battery to connect it up before use. Pay close attention when you remove it as it goes back in via the least intuitive route. Fortunately I had 2 and was more observant when removing the second battery so I could figure out how to put the first back in. It went the only way I hadn't tried. I hadn't tried it because it seemed completely wrong headed to route the wires they way they actually route.