oticon More Series Instructions For Use Manual page 8

In short
Charging
Ensure you charge the hearing aid every night. The LED light on the
hearing aid turns ORANGE when the hearing aid is charging and GREEN
when fully charged.
It takes three hours to fully charge the hearing aid.
ON/OFF
The hearing aid turns ON when you remove it from the charger.
The hearing aid turns OFF when you place it in the charger.
Ensure you always leave the charger connected to a power source when
the hearing aid is seated in the charging port.
Turning OFF the charger makes the hearing aid turn ON and start using
battery power.