Here Iam sharing my experience with the zebronics ups. Iam bought this item for proper functioning of my computer. When iam connected this zebronics ups and start to use the problems are began to arise. At first time it is working perfectly. It will charge in speed and it will give much battery back up which is enough for my computer. But after months the zebronics ups is began to show problems. The main problem is the charging time is increased very highly. And the backup of the ups decreased very much. In that time it will only last for 30 minutes. So friends in my experience iam not suggesting this zebronics ups to anyone.