System for interchanging electric energy between a battery and an electric grid and respective method.

The invention provides a power interchange system for interchanging electric energy between a battery and an electric grid. The interchange system comprises: A rectifier unit for converting alternating current of the electric grid into direct current for charging the battery; a grid measurement device for measuring an electric parameter of the electric grid; and a controller unit for adjusting the direct current for the charging the battery as a function of the electric parameter of the electric grid. Moreover a method for interchanging electric energy between a battery and an electric grid and an application of the power interchange system is provided.