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Using the components
Charging the receivers’ built-in rechargeable batteries
̈ Place the receiver into one of the charging com-
partments for receivers ´/µ (light blue in the
diagram).
•The LED· of the HDE 2020 D or
•the LED¿ of the EK 2020 D
lights up (see table).
Notes:
• Charging a completely discharged rechargeable
battery of the HDE 2020 D takes approx. 2½ hours
at room temperature.
• Charging a completely discharged rechargeable
battery of the EK 2020 D 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 reconditioned 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 charg-
ing process will be interrupted until the tem-
perature is again within the permissible range
(the LED · of the HDE 2020 D or the LED ¿ of
the EK 2020 D flashes red).
µ
´
¿
·
LED colour Meaning
red The built-in rechargeable battery is
being charged.
green The built-in rechargeable battery is
fully charged.
red
(flashing)
The temperature of the built-in rechargeable
battery is over 40°C or below 3°C.
yellow/
orange
The built-in rechargeable battery is defective.
Interrupt the charging process and contact
your Sennheiser Service.