Method for Checking an Electrical Current Measurement, Circuit for Carrying Out the Method, Battery and Motor Vehicle

A method for checking an electrical current measurement includes a first step of measuring a current to be measured IM using a current measuring structure. The method also includes a second step of superimposing a test current IP on the current to be measured IM to form a resultant current IRes=IM+IP. The resultant current IRes is measured in a third step using the current measuring structure within a period of time of the second step. In a fourth step, a check follows in order to determine whether the resultant current IRes measured in the third step corresponds to a sum of the current IM measured in the first step plus a known magnitude of the test current IP superimposed in the second step.