Method for recharging an electrical energy source on-board an electric or hybrid vehicle, comprising at least two electric traction motors (M1, M2) respectively associated with a first traction converter and a second traction converter and a control electronics, said vehicle functioning according to a traction mode using electrical energy provided by the electrical energy source, according to a braking mode for recharging said electrical energy source during braking or deceleration phases, and according to a stopping recharge mode for recharging said electrical energy source during the stopping phases of said vehicle, said method consisting in utilizing the control electronics managing the traction converters (C1, C2) to perform a reconfiguration both of the two converters (C1, C2) and also of the motors (M1, M2), in order to transform said converters (C1, C2) and said motors (M1, M2) into a charger for the on-board energy source, characterized in that during a vehicle stopping phase, a fixed electrical supply grid is connected to the first traction converter to provide a reference DC electrical voltage U R and to reconfigure the motors (M1, M2): - the neutrals of the two stator windings of said motors (M1, M2) are connected in series by means of a first switch ordered in closing position by the control electronics, which also manage other switches or commutation devices, in order to reconfigure the traction converters (C1, C2); - the voltage U B is measured at the terminals of the on-board electric energy source; - the control electronics is used to compare the electrical voltage U B to the reference electrical voltage U R; - if the electrical voltage U B is lower than the reference electrical voltage U R, a reconfiguration is performed consisting in transforming the first converter, supplied directly with the reference voltage U R, into a buck-chopper circuit for regulating the current supplied to the on-board electric energy source, the second converter being in an inhibited state; - if the electrical voltage U B is greater than or equal to the reference electrical voltage U R, a reconfiguration is performed consisting in transforming the second converter, into a boost-chopper circuit for regulating the current supplied to the on-board electric energy source, the first converter being in an inhibited state; - the closure of the first switch is ordered; and - the opening of a second switch is ordered connecting the first traction converter to the energy source, the second traction converter remaining connected to said energy source. - the neutrals of the two stator windings of said motors (M1, M2) are connected in series by means of a first switch ordered in closing position by the control electronics, which also manage other switches or commutation devices, in order to reconfigure the traction converters (C1, C2); - the voltage U B is measured at the terminals of the on-board electric energy source; - the control electronics is used to compare the electrical voltage U B to the reference electrical voltage U R; - if the electrical voltage U B is lower than the reference electrical voltage U R, a reconfiguration is performed consisting in transforming the first converter, supplied directly with the reference voltage U R, into a buck-chopper circuit for regulating the current supplied to the on-board electric energy source, the second converter being in an inhibited state; - if the electrical voltage U B is greater than or equal to the reference electrical voltage U R, a reconfiguration is performed consisting in transforming the second converter, into a boost-chopper circuit for regulating the current supplied to the on-board electric energy source, the first converter being in an inhibited state; - the closure of the first switch is ordered; and - the opening of a second switch is ordered connecting the first traction converter to the energy source, the second traction converter remaining connected to said energy source.