What I cannot comment is how much garbage is inside your battery, like once you prepare it with tab water then you can expect this. Main purpose of this thread was that you can monitor every process your own self rather than relying on UPS guys. Then supervise them and cross check the few common readings before they says its ok and you blindly agree with them.
Number of different factors can cause the similar problems, like I would tell you, you mentioned the figure 1410 Volts, which I donât understand. Cut off voltage before charging stops should be 14 Volts and AMP Rating/10 tells us that maximum current which should pass through these batteries should be 10 A.
You did not mention all these figures and you need to verify them yourself, just donât believe in technicians. There is no manual button as which can do the magic of adjustments in one go, as it has to be done through trials. Take reading, try again, take reading and then see.
What else do you expect from 100 AH battery but if it discharges very quickly as compared to previously then you can expect a problem. Either batteries are gone or something needs adjustment. Make wise decisions, its not a rocket science. Once you get stuck up then post the problem.