I have created a remix of an existing case here. The basic idea remains the same, except that I swap the clips. Once for charged and uncharged. The background is that the battery and the entire housing do not fit into the foam of my suitcase. Printed with my Bambu Lap and therefore easy to read with white font on a black background
The author remixed this model.
I have the same problem as the original creator and really liked his idea, but his cases don't fit in my suitcase. I reduced these and incorporated a lettering in German, so I always change the clip when they are empty and put them in the case with the clip