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Replying to @the_perigoso

but the 2.2 volt warning isn’t embedded that deep in the system; it’s just a feature of one of the watch faces in Movement, and it uses the ADC to check the battery voltage once a day. https://github.com/joeycastillo/Sensor-Watch/blob/b91f025542b4be42182de218630ea442eb119ddc/movement/watch_faces/clock/simple_clock_face.c#L71

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