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MAINTENANCE AND SERVICE
381
IMPORTANT
When charging the starter battery, only use a
modern battery charger with controlled charg-
ing voltage. Fast charging function must not
be used since it may damage the battery.
NOTE
If both the starter battery and the hybrid bat-
tery (p. 300) are discharged then both batter-
ies must be charged. In such a case, charging
only the hybrid battery first is not possible.
In order for the hybrid battery to be charged
the starter battery must have a certain state
of charge.
IMPORTANT
If the following instruction is not observed
then the energy saving function for infotain-
ment system may be temporarily disengaged,
and/or the message in the combined instru-
ment panel's information display about the
starter battery's state of charge may be tem-
porarily inapplicable, following the connection
of an external starter battery or battery
charger:
•
The negative battery terminal on the car's
starter battery must never be used for
connecting an external starter battery or
battery charger - only the car chassis
may be used as the grounding point.
See Jump starting with another battery
(p. 268) for a description of how the cable
clamps must be attached.
NOTE
The life of the battery is shortened if it
becomes discharged repeatedly.
The life of the battery is affected by several
factors, including driving conditions and cli-
mate. Battery starting capacity decreases
gradually with time and therefore needs to be
recharged if the car is not used for a longer
time or when it is only driven short distances.
Extreme cold further limits starting capacity.
To maintain the battery in good condition, at
least 15 minutes of driving/week is recom-
mended or that the battery is connected to a
battery charger with automatic trickle charg-
ing.
A battery that is kept fully charged has a
maximum service life.
Related information
•
Battery - symbols (p. 382)
•
Starter battery - replacement (p. 382)
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