A method for predicting a parameter relating to the remaining life of at least one electrochemical cell of a battery , the at least one electrochemical cell having a resistance, a capacitance and an open circuit voltage (OCV) - state of charge (SOC) characteristic with a planar portion, a planar portion being a portion wherein the change of the open circuit voltage (OCV) is less than 30 mV for a change of at least 10% of the state of charge (SOC), the planar portion extending between a first limit corresponding to a first value of the state of charge and a second limit corresponding to a second value of the state of charge, the method being implemented by a calculator , the method being characterized in that it comprises the steps of: - obtaining voltage and current measurements of at least one electrochemical cell during a discharge comprising one limit of the planar portion and beginning at an initial instant, - detecting one limit of the planar portion using a criterion depending on the voltage and the current, - calculating the values at the detected limit of a first parameter and of a second parameter, the first parameter being a parameter relating to the voltage and the second parameter being a parameter relating to the amount of charge lost since the initial instant, - predicting the resistance of the at least one electrochemical cell by applying a first prediction function to first input parameters, the first input parameters comprising the value of the first parameter at the detected limit and the value of the second parameter at the detected limit, the first prediction function being obtained by a first learning technique, so as to obtain a value of a predicted resistance, - predicting the capacitance of the at least one electrochemical cell by applying a second prediction function to second input parameters, the second input parameters comprising the value of the first parameter at the detected limit and the value of the second parameter at the detected limit, the second prediction function being obtained by a second learning technique, so as to obtain a value of a predicted capacitance, and - predicting a parameter relating to the remaining life of the at least one electrochemical cell from the value of a predicted resistance and the value of a predicted capacitance. - obtaining voltage and current measurements of at least one electrochemical cell during a discharge comprising one limit of the planar portion and beginning at an initial instant, - detecting one limit of the planar portion using a criterion depending on the voltage and the current, - calculating the values at the detected limit of a first parameter and of a second parameter, the first parameter being a parameter relating to the voltage and the second parameter being a parameter relating to the amount of charge lost since the initial instant, - predicting the resistance of the at least one electrochemical cell by applying a first prediction function to first input parameters, the first input parameters comprising the value of the first parameter at the detected limit and the value of the second parameter at the detected limit, the first prediction function being obtained by a first learning technique, so as to obtain a value of a predicted resistance, - predicting the capacitance of the at least one electrochemical cell by applying a second prediction function to second input parameters, the second input parameters comprising the value of the first parameter at the detected limit and the value of the second parameter at the detected limit, the second prediction function being obtained by a second learning technique, so as to obtain a value of a predicted capacitance, and - predicting a parameter relating to the remaining life of the at least one electrochemical cell from the value of a predicted resistance and the value of a predicted capacitance. <EOS>