Hello Sachin,
To get the fastest speed, you will want to use average models for your power electronics. This is fine for simulating your battery profile and testing closed loop control. To not simulate the full 10 hours, you can test your charger at different values of state of charge and look at the detailed simulation of the switch behavior for those small snapshots.
Here is a landing page specifically for simulating batteries: https://www.mathworks.com/solutions/power-electronics-control/battery-models.html
Regards,
Joel
