This is very usefull if you have power cuts issue.I think power cuts is a common issue which everyone will face.i am using this for PC from last 3 years and there is not issues so fare.it backups very good.Once my important ongoing work got loast due to poer cut and had to redo the work which frustrated me, so at that time I purchased this for my pc.Believe its a very good product to have at home.I am using from last 3 years without issue that speaks about the durability of the product.It is required to charge for 10 hrs min for the first time and then use it then after.I have attached my CPU to this.So when I switch on my pc battery will keep get charged and when power is cut there will be 3 beep sound which says it will run on this ups.As far as my observation it can help you to work for atleast 1 hr without issue.
Very easy usage and installation
Must buy for everyone as power cut is common problem for all