Sennheiser HDE 2020-D-II Instruction manual Tourguide 2020-D - Page 47

Operation LED 12 lights up red lights up green flashes red lights up orange is off Meaning The rechargeable battery is being charged. The rechargeable battery is fully charged. The temperature of the rechargeable battery is below 3 °C or over 40 °C. The charging process will be interrupted until the temperature of the rechargeable battery is again between 3 °C and 40 °C. The rechargeable battery is defective. Interrupt the charging process and contact your Sennheiser service partner. The receiver is not placed correctly into the charging compartment. Charging time of a completely discharged rechargeable battery at room temperature: Receiver HDE 2020-D-II EK 2020-D-II Charging time approx. 2.5 hours approx. 5 hours The charging process may take longer if: • the rechargeable battery is deep discharged and first has to be reconditioned by a deep discharge recovery charge, • the temperature of the built-in rechargeable battery is below 3 °C or over 40 °C, since, in order to protect the rechargeable battery, the charging process will be interrupted until the temperature is again within the permissible range and the LED 12 lights up, • the additional temperature protection of the charger interrupts the charging process until the charger has cooled down. 46 | Tourguide 2020-D