Charging The High-Voltage Battery - Mercedes-Benz GLC 2020 Operator's Manual

30 Driving and parking
The multifunction display shows currently selec‐
ted recuperation level 1, for example hÃ.

Charging the high-voltage battery

Notes on the high-voltage battery
* NOTE Damage caused to the high-volt‐
age battery through lengthy idle periods
or exhaustive discharging
Lengthy idle periods with a high charge level
may result in an accelerated aging of the
high-voltage battery.
Exhaustive discharging caused by the battery
being idle for lengthy periods can damage
the high-voltage battery.
Before long idle periods, park the vehi‐
#
cle with a high-voltage battery charge
level between 30% and 50%. Do not
keep the high-voltage battery continu‐
ously connected to power supply equip‐
ment.
Check the charge level of the high-volt‐
#
age battery every two to three months.
Recharge the high-voltage battery if the
charge level is insufficient.
% You can check the charge level of the high-
voltage battery in the multimedia system:
( page 21)
/
Charging options for the high-voltage battery
(mode 2 and 3)
The electric motor is operated as an alternator
when in overrun mode and during braking in
order to charge the high-voltage battery while
driving.
You have the following options to charge while
stationary:
At a mains outlet (mode 2)
R
At a wallbox (mode 3)
R
At a charging station (mode 3)
R
The high-voltage battery can be charged in a
nominal voltage range from 100 V to 400 V.
It is recommended that you charge the high-volt‐
age battery at a wallbox or charging station due
to the improved charging performance and bet‐
ter charging efficiency offered.
System limits
The power output of the high-voltage battery
may be impaired by the following:
High or low outside temperatures
R
Electrical auxiliary consumers in the vehicle
R
being switched on, e.g. operating the climate
control system
Extended periods without charging
R