I bought Zebronics UPS U725 around 1 year ago. From the beginning I found this is heating too much and few times power supply was fluctuating and pc was being shut down. And it was providing 15 minutes maximum back up.
But after 3 months it stopped providing the back up. Sometimes I am working some important work but my pc shuts down because of its poor battery.
It’s looks can be attractive but the performance is so disappointing. So now I stopped using it.