Microtek International — sr no 16hjebmaa011910 ups jm sw 3.6kva/48 v inverter

Address:	Jodhpur, Rajasthan, 342008
Website:	www.microtekdirect.com

For past one year every month i am lodging complaint about the invert-er each time service engineer come and repairs and go.
They replaced a second hand plate each time they change resistances.

Is this a new invertor each time they blame the battery, in fact this invert-er kicked off my two batteries too
This is last time next time ic am going legal in consumer forum