The invention provides an energy charging system related to the stop of an electric vehicle. The energy charging system (1) is described, comprising at least one operator vehicle (10) equipped with at least one electrically supplied traction engine and moving along at least one operating path (R10), and at least one backup vehicle (20) equipped with at least one device (30) adapted to produce, accumulate and transfer electric energy to such operator vehicle (10) through a connection directly and automatically performed next to at least one stop (S1, S2,....Sn) of such operator vehicle (10) along at least one said operating path (R10) for recharging one or more electric supply batteries of the traction engine, such backup vehicle (20) being adapted to move on a path spatially and timely related to such stop (S1, S2,....Sn) of the operator vehicle (10).