Hi Azhar,


Your questions are off topic, but let me tell you some about batteries.

1) Almost all batteries are CV type.
2) It is easy to sense the fully charged condition in CC type charging. Just monitor the current going to the battery. A 100A battery is fully charged when it is drawing less than 1A current. However it depends upon the battery you are using.
3)Car batteries are CV type voltage source.
4) As a rule of thumb, 10% of the rated capacity is taken as standard charge rate. But modern batteries offer fast charging, where you can go upto 50% of the rated capacity.

Regards

IA