Mercedes-Benz EQA 2022, Owner'S Manual

Page: 206 / 541

%
Avoid storing AdBlue
®
refill containers perma-
nently in the vehicle.
Charging the high-voltage battery (plug-in
hybrid)
Notes on charging the high-voltage battery
*
NOTE High-voltage battery damage due to
leaving the vehicle idle for lengthy periods
of time
Lithium-ion batteries experience a natural self-
discharge.
Exhaustive discharging can therefore occur if
the vehicle is idle for several months. This can
damage the high-voltage battery.
#
To avoid damage, please observe the fol-
lowing recommendations when handling
the high-voltage battery.
* NOTE Accelerated ageing of the high-volt-
age battery due to not observing the fol-
lowing recommendations
As a result of its basic characteristics, the
storage capacity of and the amount of energy
available from the high-voltage battery decrea-
ses over the course of its life. Due to this, both
the maximum electrical range that can be ach-
ieved by the vehicle and its maximum electri-
cal output can be impaired.
The following factors could accelerate the age-
ing of the high-voltage battery:
R
a high level of charge, especially if the
vehicle is idle for a lengthy period of time
R
frequent rapid charging with direct current
(mode 4)
R
leaving the vehicle idle for lengthy periods
at high ambient temperatures
#
To avoid accelerated ageing, please
observe the following recommendations
when handling the high-voltage battery.
Recommendations when handling the high-voltage
battery:
R
Only charge the high-voltage battery with
direct current (mode 4) if necessary.
R
If leaving the vehicle idle for lengthy periods,
park up the vehicle with a high-voltage battery
charge level between 25% and 30%. Do not
keep the high-voltage battery continuously
connected to power supply equipment.
R
If leaving the vehicle idle for lengthy periods of
time avoid, if possible, high ambient tempera-
tures.
R
Check the high-voltage battery's charge level
every six weeks (
/
page 220).
R
Charge the high-voltage battery if the charge
level is below 15%.
R
Do not disconnect the 12 V battery even if the
vehicle is left idle for a lengthy period. Other-
wise, the condition of the vehicle's high-volt-
age battery cannot be monitored.
Driving and parking 203