@asie Heya, maybe you know the answer to my question.

Were there any B&W Wonderswan cartridges that also had a colour mode when used in a Wonderswan Color? Just like the GameBoy had, there it was called dual-mode I think.

For some reason, if I don't use my laptop for a week or longer, the battery percentage takes a big hit.

7 months ago it could still go to 100%. After being away for three weeks it only got to ~69% and after recently being away for one week again it got down to only ~33%.

This now means I can not use my laptop anymore in the train, it doesn't want to boot anymore after failing the first try.

Calibrating doesn't seem to help as well...
And this battery isn't even that old 😢