Sennheiser MOMENTUM True Wireless 3 Noise-Canceling In-Ear Headphones (Graphite) - Manual (Page 16)

Using the earbuds
16 | MOMENTUM True Wireless 3
Charging the rechargeable batteries
using the USB cable
1. Open the charging case by overcoming a slight magnetic resis-
tance and insert the left earbud into the left charging compart-
ment and the right earbud into the right charging compartment.
The earbuds are magnetically pulled into the charging compart-
ments.
2. Connect the USB-C connector of the USB cable to the USB-C
socket of the charging case.
3. 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 rechargeable batteries of the earbuds and the charging case
are being charged.
If no earbuds are inserted into the charging case, only the
rechargeable battery of the charging case is being charged.
The LED of the charging case displays the charge status:
LED
Charging case WITH
earbuds inserted
Charging case
WITHOUT earbuds
inserted
pulses
yellow
... earbuds and
charging case are
being charged
... charging case is
being charged
lights up
green
... earbuds and
charging case are
fully charged
... charging case is
fully charged
flashes
red
... a charging error/
battery error has
been detected in at
least one earbud (>
38)
... a charging error/
battery error has
been detected in the
charging case (> 38)
If the LED does not light up:
• Clean the contacts on the earbuds and in the charging case
(> 37).
• Clean the USB-C socket of the charging case.
• Charge the rechargeable batteries of the earbuds and the
charging case (at least 30 minutes) until the LED lights up
again.
1 2
3
L
R
USB-C
USB-A