El Ian acaba de confirmarme en discord que el modelo S si que se carga aunque no esté activa la switch en ese momento, exactamente como los joycons. Lo comento por si alguien valora mucho esta diferencia.
The M12S charging logic, we think more reasonable than Joy-Con 2:
1. When the console is on standby and not charging, the controller consumes no power from the console.
2. When the console is charging, disable the controller’s power-saving mode, and the controller can charge normally in both docked and handheld modes.
3. In handheld gaming mode, you can toggle the power-saving mode to balance power consumption between the console and the controller freely.
When the console is charging with the screen off, the Joy-Cons will also charge simultaneously.