I had a worst experience with su Kam shark 900, firstly I got supply for office use and for months it was running good and then problem started, first I notice when I try to on Hp laser jet MI005 MFP, shark 900 make unusual sound and followed by beeps sound , and all sort of problem started even before a year. There was no proper back up after that, some advice due to lose in battery connection or battery not good, how on earth it was one of my trusted exide battery.
It’s running, doesn’t shut down completely but comparing to microtek ups with same battery, I don’t recommend shark 900.im thinking su Kam is not providing quality product which is durable. Th such case same model will not function accordingly, which is company not paying attention to quality of their products, product at affordable price is always not the best, and suk Kam shark 900 is not a good inverter.