A mobile strapping device for strapping goods with a strap is provided. The mobile strapping device applies a tension to a loop of the strap. The mobile strapping device further provides a connection in the strap for forming a closed loop of the strap. The mobile strapping device further includes a chargeable energy storage for supplying energy. The mobile strapping device further includes a tensioning wheel (5) having an outer circumferential surface and being rotatably drivable about its rotational axis by a drive and a tensioning element (25) having a surface which faces the outer circumferential surface of the tensioning wheel (5). The tensioning wheel (5) is pivotable about a pivot axis (26) which is parallel to and offset from the rotational axis of the tensioning wheel (5).