Battery Care; Energy Consumption; Outside Temperatures - SMART for two coupé Operator's Manual

Use only charging cables which have been
approved and recommended for the vehicle.
Do not use:
extension chords
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cable reels
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multiple sockets
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travel adapters
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When possible, only charge the high-
voltage battery when the charge level is
below 80 %.
It is recommended to charge the high-
voltage battery prior to reaching less
than 20% state of charge.
Discharged high-voltage battery
When the high-voltage battery is com-
pletely discharged, the drive system is
switched off. This protects the battery
from exhaustive discharge.
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By switching the ignition off and on
again, the drive system can be briefly
reactivated once. This allows you to park
the vehicle safely.
Do not allow your vehicle to remain sta-
tionary for more than 14 days with a dis-
charged, or nearly discharged, high-volt-
age battery. You can check the charge level
with the charge level gauge (
High or low outside temperatures
The efficiency of the high-voltage battery
is temperature-dependent and decreases
at high or low temperatures. Additionally,
the electrolytes used can gel at very low
temperatures.
You can check the maximum capacity avail-
able using the indicator in the multifunc-
tion display ( page 87).
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Energy consumption and range
The available energy of the high-voltage
battery is reduced by:
low outside temperatures
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switching on electrical consumers
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At low temperatures and after being parked
for an extended period without charging,
the physical properties of the high-volt-
age battery:
can cause a significant reduction in the
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performance of the battery
can lead to longer charging times
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In extreme cases, you will not be able to
start the vehicle. For this reason, always
connect the charging cable or make sure the
battery is completely charged when park-
ing the vehicle in low outside tempera-
tures or for an extended period of time.
Due to its physical properties, the capa-
city of a high-voltage battery decreases
over its lifespan.
Thus, the following are reduced:
the maximum attainable range of the
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vehicle
the maximum performance output (accel-
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eration) of the vehicle
You can actively contribute to the reduc-
tion of the vehicle's energy consumption
page 81).
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by:
driving conservatively
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maintaining the vehicle regularly
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decreasing the use of electrical consum-
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ers
Notes on battery care
Avoid storing and transporting the vehicle
at high temperatures for extended periods
of time (e. g. container transport).
When out of use for longer periods of time,
connect the vehicle to a voltage supply.
If the vehicle is not connected to a voltage
supply, it must remain within a tempera-
High-voltage battery
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