# How can I size the current ripple of a DC-DC converter for lithium batteries

I am designing a bidirectional DC-DC converter to charge and discharge batteries on a DC bus. The power of this converter is 50 kW and the average current in the inductor (the same as that on the battery) is 125 A. By designing the converter for a 20% current ripple I will have iL_min = 112.5 A and iL_max = 137.5 A. The frequency switch is 25kH. I wonder if this ripple of 25 A current is harmful to the battery bank.