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Operation
5
10
LED color
red
green
red (flashing)
yellow/orange
Notes:
•
Charging a completely discharged rechargeable battery of the
HDE 2020-D-II takes approx� 2½ hours at room temperature�
•
Charging a completely discharged rechargeable battery of the EK 2020-D-II
takes approx� 5 hours at room temperature�
•
However, the charging process may take longer if:
•
the rechargeable battery is deep discharged and first has to be recondi-
tioned by a deep discharge recovery charge,
•
the temperature of the built-in rechargeable battery is over 40 °C or
below 3 °C, since, in order to protect the rechargeable battery, the
charging process will be interrupted until the temperature is again with-
in the permissible range (the LED
the EK 2 020-D flashes red)�
•
An additional temperature protection prevents overheating inside the
charging case� If the temperature inside the charging case exceeds safety
limits, the charging process will be interrupted and will only be restarted
when the charging case has cooled down�
•
When not using the receivers for extended periods of time, charge them
about every six months in order to prevent deep discharge damage to the
rechargeable batteries�
118 | Tourguide 2020-D
4
2
Meaning
The built-in rechargeable battery is being charged�
The built-in rechargeable battery is fully charged�
The temperature of the built-in rechargeable battery is over
40 °C or below 3 °C�
The built-in rechargeable battery is defective� Interrupt the
charging process and contact your Sennheiser Service�
2
of the HDE 2020-D-II or the LED
4
of
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