Hi friends I am using Exide inverter and battery since from last few yeras it gives a good backup up to 10 hours for 2 fans consumption. I am using 3 fans and 5 CFLs on inverter it gives a good backup.
All other batteries do not give the backup like EXIDE. Exide is a good battery it can handle so much of load of fans if you are using 3 fans it is the best inverter for and battery for you. Other battery can not afford the load of 3 fans but exide can afford.