Sennheiser ACCENTUM Over-Ear Wireless Headphones (Black) - Manual (Page 13)

Using the headphones
ACCENTUM | 13
Charging the headphones’ rechargeable
battery
1. Make sure that the charging socket is free from moisture and con-
tamination. Connect the USB-C connector of the charging cable
to the USB socket of the headphones.
2. Connect the USB-A connector to a corresponding socket of a USB
power source (to be ordered separately). Make sure that the USB
power source is connected to the power supply system.
The charging process of the headphones begins. The LED display
indicates the charge status.
If the LED display does not light up:
▷
Clean the charging socket (> 34).
▷
Charge the rechargeable battery until the LED display lights up
again (at least 30 minutes) (> 13). If the rechargeable battery is
completely discharged, it may take several minutes for the LED
display to indicate the charging process.
R
USB-C
USB-A
LED Meaning
flashes red
Battery charge is 0 % to 20 %.
flashes yellow
Battery charge is 20 % to 90 %.
flashes green
Battery charge is 90 % to 100 %.
lights up green
for 5 minutes When the rechargeable battery is
100% charged, the LED lights up for
5 minutes and then goes off.
You can speed up the charging process by charging the head-
phones when they are switched off.
If you disconnect the USB connection during or after charging,
you will hear a voice prompt informing you of the remaining
battery life.
5min