NOVELTY - The method involves reading maximum temperature spreading of a high-capacity battery (120). The maximum temperature spreading of the battery is compared with a pre-defined maximum permissible temperature spreading. A manipulated variable is determined to control maximum temperature in a battery cooling system (100) and the maximum temperature spreading of the battery dependant on an operating point, where the maximum temperature represents a value of highest battery temperature. A controllable pump (160) is switched on if the maximum temperature is larger than an upper limit value.    USE - Method for operating point-dependant control of temperature of a battery cooling system for a high-capacity battery e.g. high volt battery and bottom-cooled battery, in an electrical car or a hybrid car. Can also be used in a mobile working machine and in an off-highway application.    ADVANTAGE - The method ensures efficient operating point-dependant control of the temperature of the battery cooling system for the high-capacity battery, considering the temperature spreading of the battery, increases service life and efficiency of the battery, if temperature is not controlled by viewing maximum battery temperature and supplementary temperature spreading is stopped in the battery below certain limits and achieves control operation ranges by using the maximum battery temperature and the temperature spreading to prevent and/or minimize irreversible damages of the battery.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following:    (1) a device for execution of a method for operating point-dependant control of temperature of a battery cooling system    (2) a computer program comprising a program code for executing steps of a method for operating point-dependant control of temperature of a battery cooling system.    DESCRIPTION OF DRAWING(S) - The drawing shows a block diagram of a system for operating point-dependant control of temperature of a battery cooling system for a high-capacity battery.    Battery cooling system (100)    High-capacity battery (120)    Cooling unit (130)    Coolant (140)    Controllable pump (160)