Mercedes-Benz GLC Owner's Manual page 215

Charging the high-voltage battery (PLUG-IN HYBRID vehicles)
212
Energy consumption and electrical
range
The maximum electrical range is generally
reduced by:
high and low outside temperatures
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operating the climate control system
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switching on consumers
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The battery's physical characteristics are
such, that leaving the vehicle parked for long
periods at low outdoor temperatures without
charging it can lead to:
a reduction in battery performance
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longer charge times
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Notes on battery care
Avoid storing or transporting the vehicle at
excessively high or low temperatures over a
long period.
If you park the vehicle and leave it stationary
for long periods:
check the charge status of the high-voltage
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battery more often
connect the vehicle to a power supply
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This prevents self-discharge and damage to
the high-voltage battery.
Terms of use
Please note the information on exceptions
and limitations in the warranty documenta-
tion and in the Service Booklet.
Handling the charging cable and charg-
ing cable controls
Do not leave the charging cable controls
( page 213) hanging loose from a mains
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socket. Otherwise, this could result in a poor
contact with the mains socket and malfunc-
tions when charging the vehicle.
To ensure that the brackets within the charg-
ing cable controls are not subjected to incor-
rect loads, observe the following:
never lift or carry the controls by the charg-
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ing cable connector or the mains plug
to transport the charging cable, the coiled
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part can be:
wrapped around the controls or
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secured to the housing of the controls
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Heat generated by the charging cable
and charging cable connector
Observe the "Important safety notes"
( page 210).
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During the charging process, the charging
cable and charging cable connector may heat
up.
The charging cable and charging cable con-
nector will only heat up within the permissible
limiting values, provided that:
the mains power supply and the charging
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cable are not damaged
the instructions for handling the charging
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cable and controls on the charging cable
are observed
If the charging cable or plug get too hot, have
the mains power supply checked.
Protection against overvoltage
! Voltage surges in the mains supply can
damage the vehicle. The vehicle is there-
fore equipped with a device which protects
it from voltage surges in the mains supply.
This device may be triggered during severe
thunderstorms, for example, and may lead
to the building's fuse being tripped and an
interruption in the power supply. These
functions protect the vehicle. After the
building fuse is switched on again, the
charging process resumes automatically.
Following an interruption in the power sup-
ply or tripping of the building's fuse, it may
take up to 10 minutes for charging to
resume automatically.