Volvo XC60 Twin Engine 2020 Owner's Manual page 610

MAINTENANCE AND SERVICE
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Positive connection point
Negative connection point
CAUTION
It is not possible to charge another vehi-
cle's battery by supplying current through
the charging points. Using the charging
points to charge another vehicle's battery
could cause a fuse to blow, which would
cause the charging points to stop working.
608
CAUTION
Only a modern battery charger with con-
trolled charge voltage should be used to
charge the starter battery. The rapid charg-
ing function should not be used as this
could damage the battery.
NOTE
If both the starter battery and the hybrid
battery are discharged, both batteries
must be charged. In such cases, it is not
possible to charge only the hybrid battery
first.
The starter battery must have a certain
level of charge for it to be possible to
charge the hybrid battery.
CAUTION
Failure to observe the following could
cause the infotainment energy save mode
to temporarily stop working and/or a mes-
sage in the driver's display regarding the
state of charge of the starter battery may
be temporarily incorrect after an external
starter battery or battery charger has been
connected:
The negative battery terminal of the
•
vehicle's starter battery must never be
used to connect an external starter
battery or battery charger – only the
vehicle's negative charging point
should be used as a grounding point.