BMW K 1200 R Rider's Manual page 119

Charging battery when
connected
If the indicator lights do not
light up and the multifunction
display remains blank when
you switch on the ignition, the
battery is completely flat.
• Charge the disconnected
battery via the power socket.
• Comply with the operating
instructions of the charger.
Charging a completely
drained battery via the
onboard socket can result in
damage to the motorcycle
electronics.
If the battery is completely flat
it must always be recharged
directly at the terminals.c
• Do not attempt to recharge a
completely flat battery via
the onboard socket; instead,
disconnect the battery from
the onboard system and
connect the charger directly
to the battery terminals.
• Comply with the operating
instructions of the charger.
Your authorized BMW
motorcycle retailer will be
happy to provide information
on suitable chargers.c
If the battery is only partially
discharged, it can be re-
charged via the onboard
socket.
• If electrical accessories are
connected to an additional
OA
onboard socket , discon-
nect them before connecting
the charger.
• Switch on the ignition.
• Plug the charger into the
onboard socket. Comply
with the operating instruc-
tions of the charger.
• Switch off the ignition.
The motorcycle's on-
board electronics know
when the battery is fully
charged. The onboard socket
is switched off when this
happens.c
If you are unable to
charge the battery
through the power socket, you
may be using a charger that is
not compatible with your
motorcycle's electronics. If
this happens, disconnect the
battery from the onboard
systems and connect the
charger directly to the
battery.c
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