BMW Motorrad Plus battery charger, Operating Instructions Manual, Page: 17 / 21

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it is left connected, the Plus battery char-
ger will charge the battery slowly until the
battery's management system goes active
again. When this happens the charging pro-
cess is started automatically and progress
is indicated. It can take up to 24 hours for
the battery management system to go act-
ive. If the charging process has not started
after 24 hours, the lithium-ion battery has
to be tested and charged by a specialist
workshop, preferably an authorised BMW
Motorrad retailer.
When the Plus battery charger is in charging
mode 2, ambient temperature is checked
continuously. If ambient temperature is
lower than 0 °C, the Plus battery charger
reduces the charging current to 0.5 A and
does not increase it again until ambient
temperature is above 0 °C.
MOTORCYCLE DOES NOT START
ChargingComplete Battery mainten.
appears in the display, but the motorcycle
cannot be started. The Plus battery charger
is not a battery tester. The battery might be
defective.
ERROR LED LIGHTS UP
If the Plus battery charger is connected to a
battery with a voltage outside the permiss-
ible range, for example greater than 16 V,
the ERROR LED lights up and
No battery
appears in the display.