Ups not working properly, when power cut it goes down within a second. I am Consulting Customer Care Delhi and after that, i am consult Service Centre of Dhanbad . Dhanbad service Centre Provide a Contact No Of Service Engineer Avneet Jha [protected] but his cell is not reachble. so take a need ful action. Ups Model No - MDP800+ S.No - 8GUMNX40156 Date OF MFG - 04/07/2008 Date of Purchase - 18/07/2008 Ups is available on this Address - Sharvan Kumar DS II, 169/D Railway Temple Colony Bokaro Steel city Jharkhand 827010 Mobile No [protected] Email - sharvan.[protected]@yahoo.com