Lohith,
It just happens that I have been using this same charger on a project and created a simulation for it that contains a Saft battery model that is fairly representative.? Maybe it will be useful.
I just uploaded it to the Temp directory.??Normally that battery model is set for 1200mAh?but notice that I convert that to?10 msec to give quick looks at the charger behavior for different chemistry configurations.? In the battery block there are three configurations with SOC etc that can be selected by commenting.
Tim
thutches