Volvo XC90 T8 TwinEngine Plug-In Hybrid, Owner'S Manual

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MAINTENANCE AND SERVICING
470
Positive connection point
Negative connection point
Only modern battery chargers should be used to
charge the start battery. Quick charge functions
should
not
be used and could damage the bat-
tery.
If both the start and hybrid batteries are fully dis-
charged, both will have to be charged. Only
charging the hybrid battery in this situation is not
possible. Before the hybrid battery can be
charged, the start battery must be charged to a
certain level.
CAUTION
•
The infotainment system's energy-saving
feature may not function correctly or at
all, and/or a message may be displayed if
a battery charger or jumper cables are
not connected properly.
•
The negative terminal on the battery must
never
be used to connect a jumper cable
or a battery charger. Only the ground
point on the chassis may be used.
NOTE
•
The service life of the start battery is
shortened if it becomes discharged
repeatedly.
•
The service life of the start battery is
affected by factors such as driving condi-
tions and climate. Extreme cold may also
further decrease the battery's start
capacity.
•
Because the battery’s starting capacity
decreases with time, it may be necessary
to recharge it if the vehicle is not driven
for an extended period of time or if the
vehicle is usually only driven short dis-
tances.
•
Driving for at least 15 minutes a week or
connecting the battery to a charger with
automatic maintenance charging will help
keep it in good operating condition.
•
Keeping the start battery fully charged
will help maximize its service life.