oticon miniRITE R Instructions For Use Manual page 12

In short
Charging
Charge the hearing aid every night.
The LED on the hearing aid will turn RED/ORANGE when the
hearing aid is charging and GREEN when fully charged.
It takes 3 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.
IMPORTANT NOTICE
Ensure you always leave the charger connected to a power source when
the hearing aid is seated in the charging port. Turning the charger OFF
makes the hearing aid turn ON and start using battery power.