Sennheiser HDE 2020-D Instruction Manual page 35

Using the components
34
Charging the receivers' built-in rechargeable batteries
Place the receiver into one of the charging com-
partments for receivers
diagram).
• The LED of the HDE 2020 D or
• the LED of the EK 2020 D
lights up (see table).
LED colour Meaning
red The built-in rechargeable battery is
being charged.
green The built-in rechargeable battery is
fully charged.
red The temperature of the built-in rechargeable
(flashing) battery is over 40°C or below 3°C.
yellow/ The built-in rechargeable battery is defective.
orange Interrupt the charging process and contact
your Sennheiser Service.
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
the EK 2020 D flashes red).
/ (light blue in the
of the HDE 2020 D or the LED of