Cube Reaction Hybrid e-bike charging port cover (Bosch)

This version of the cover relies on friction to remain attached to the bike.  I believe that over time it will eventually fall off.  When it does, I will redesign the cover to have a hole where I can  use a wire split ring to retain the cover with the bike when I am charging.  Until then, this is what it is.

The cover does not remain connected to the bike when the charging port uncovered.  This is a flaw in the design and needs to be improved.