NOVELTY - Operating battery having several electrochemical cells, preferably battery designed for use in motor vehicles, comprising a battery control unit, comprises (S2) detecting operating parameter data of the battery, (S3) transmitting operating parameter data to a control unit, (S4) determining and checking by the control unit, (S5) performing a normal operation of the battery, (S6) transmitting a query to a decision unit, (S7) determining a response by decision unit to the query, (S12) transmitting response to the battery control unit, and (S13) performing exceptional operation of the battery.    USE - The method is useful for operating battery having several electrochemical cells, preferably battery designed for use in motor vehicles.    ADVANTAGE - The method: is safe; and increases the durability of the battery.    DETAILED DESCRIPTION - Operating battery having several electrochemical cells, preferably battery designed for use in motor vehicles, comprising a battery control unit, comprises (S2) detecting operating parameter data of the battery, (S3) transmitting the operating parameter data to a control unit, (S4) determining and checking by the control unit, whether the battery has a predetermined relationship to the operating parameter data compared to predetermined operating parameter values, (S5) performing a normal operation of the battery, when the predetermined relationship with respect to predetermined operational parameter values for the detected operating parameter data of the battery is determined in the step (S4), (S6) transmitting a query to a decision unit, whether an exceptional operation of the battery is to be performed, (S7) determining a response by the decision unit to the query, (S12) transmitting the response to the battery control unit, and (S13) performing exceptional operation of the battery depending on the response transmitted in step (S7) by the battery control unit, when the exceptional operation of the battery is performed is determined by the decision unit in the step (g). The predetermined relationship of the operating parameter data compared to the predetermined operating parameter values is optionally provided for the detected operating parameter data of the battery, in step (S2). An INDEPENDENT CLAIM is also included for the battery having several electrochemical cells, preferably battery designed for use in motor vehicles, comprising battery control unit that is designed for operating the battery in normal operation and in exceptional operation depending on the operating parameter data of the battery and the response of the decision unit.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic flow diagram of the method. (Drawing includes non-English language text).    Detecting operating parameter data step (S2)    Transmitting operating parameter data step (S3)    Performing normal operation step (S5)    Transmitting query step (S6)    Determining response step (S7)