The Stromer models ST1 / ST2 sometimes had the problem that the Stromer switched off while driving over rough ground or through a pothole.
The problem was the battery compartment door. The limitation for the vertical movement of the battery in the battery compartment provided clearance for the battery. If it was hit, it slid upwards in the battery compartment and lost contact with the Rosenberger battery base in the battery compartment. The result was a brief interruption in the power supply, which made it necessary to restart the Stromer.
Stromer offers an update of the flap.

If you have a 3D printer, you can print out a distance adapter yourself. Here is the STL file.

The video shows how the new battery cover is fitted.
Dit onderdeel past precies bovenin de binnenkant van de deur flap. Tussen het plastic lipje (waarop het handvat vd batterij zich vastgrijpt bij installatie) en het aluminium gedeelte van de flap zit een 4cm brede gleuf waarin het onderdeel past. Het kan daar in twee manieren in, maar door samen met de batterij te passen zal duidelijk worden hoe het onderdeel moet zodat de batter niet meer omhoog schiet. Met PVC lijm vastlijmen en klaar.
Great, thanks. That's exactly it and the 3D part helps perfectly. Thanks for your page and effort!
Can you explain to me what exactly should be done with the printed part now? How should it be assembled?
How and where did you attach that?