Answer / mohandas

A 100AH battery when fully charged will be discharged at a rate of 5 Amps when it is at C20 rating.
Similarly at C10 rating the battery will be discharged at a discharge rate of 10 Amps when it is at C10 rating.
It will be the same way when the battery is being charged. At C 20 rating the battery will take 20 hrs to get fully charged at a charging current of 5 Amps.
However, these are theoretical assumptions and could vary with life of the battery.

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