I bought this Homage 1kva inverter 2 yrs ago, with exide 115amp battery, worked excellently for 6 months bt after dat its backup time started deteriorating, from 1.5 hrs to 15 mins, battery used to heat up alot and used to consume all water in it, we hav to refilll it daily, bt after sometym it died, dan we came to knw that the fault lies in ups, that didnt stop charging of the battery, excessive charging caused the battery heatup, experts say that there is sum programmable chip in it, that tells the ups wen to stop charging the battery known as "cut over". Moreover it is said that it is a very common HOMAGE problem. Once UPS is installed, keep an eye on this thing that UPS should stop charging of the battery after an hour or so