The invention relates to an electric auxiliary drive (100) for an at least supporting drive for pedestrian-operated micromobility applications, in particular strollers, comprising an electric motor (118), a wireless module (158), a data processing unit (150), and a battery (180). The data processing unit (150) is paired with a security unit (152) which can be actuated by means of an application (300) of a mobile terminal (200), in particular a smartphone (202), in order to allow the electric auxiliary drive (100) to be secured against an unauthorized use.
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