Summary: Though APC is the most popular and available back- up product it has a short life span. I have owned 3 of these. And have had to replace all of them after 4 - 6 years. Each one started to over charge the internal sealed lead acid batteries. Causing the unit to fail.
Summary: I have a Dell Studio XPS 9000 which will not run on a normal power back up. My Dell requires "sine wave" power which the 1500 delivers. The 1500 kicks in as expected during a power outage or brownout however this unit is extremely noisy. The fan runs practically non-stop 24 hours a day.
Summary: A minor problem is that the UPS power button is hard to get to. I don't have particularly large fingers, but if my nails are trimmed I can't reach the power button and have to use a pencil to get at the button down in its hole.
Summary: The LCD panel is nice to have but not real intuitive. The unit has a buzzing sound to it that the previous version of this model didnu2019t have. I talked to tech support about it and they sent me a new unit but it has the same buzz. Itu2019s not real loud but in a quiet room, you can hear it.
Summary: I have a small business. I purchased 8 of these babies of the past couple of years. I had some time on my hands and since I am a little GEEKish, I decided to try some adhoc tests. I was shocked. I hooked up one of my UPS XS LCD 1500 to a light with a 100 watt light. and an air purifier (50 watts).
Summary: I have been using the unit for a few hours and the previous reveiwers are correct - the fan is really noisy - much noisier than my PC. I can hear it from other rooms near the home office. I hope it turns off later as at least one reviewer mentions.