Sennheiser 2020 User Manual download pdf (Page 33)

Using the components

Charging the receivers' built-in rechargeable batteries

 Place the receiver into one of the charging

compartments for receivers / (light blue in the

diagram).

The LED  lights up (see table).

Notes:

y Charging a completely discharged rechargeable

battery takes approx. 2½ hours at room

temperature.

y 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

charging process will be interrupted until the

temperature is again within the admissible

range (the LED



flashes red).

y 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.

y When not using the receivers for extended

periods of time, charge them about every six







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 rechargea-

ble battery is over 40°C or below 3°C

yellow/

orange

The built-in rechargeable battery is defec-

tive. Interrupt the charging process and

contact your Sennheiser Service.

months in order to prevent deep discharge

damage to the rechargeable batteries.

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Sennheiser 2020 User Manual Page 33

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