Sennheiser 2020 User Manual

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LED indication for charging compartments for 
BA 2015 accupack/transmitter
Each charging compartment for accupack/trans-
mitter

 has an LED
CHARGE

 and an LED
READY

which indicate the following operating states:
No LED lit:
The charging compartment for accupack/trans-
mitter

 is ready for operation but empty.
Or: 
A transmitter without accupack is placed into the
charging compartment.
Red LED CHARGE
 lit:
The accupack is being charged. 
Green LED READY
 lit:
The accupack is fully charged and the charging case
has switched to trickle charging.
Green LED READY
 lights up briefly and then goes
off:
The transmitter is powered by standard batteries
which cannot be recharged.