User Manual - Page 485

For 2017 VOLVO V90.

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MAINTENANCE AND SERVICING
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483
CAUTION
When connecting an external start battery or
a battery charger, the Start/Stop function may
be temporarily disabled if the negative termi-
nal on the vehicle's start battery is used to
connect an external start battery or a battery
charger. Only the negative connection point
in the engine compartment may be used as a
ground point.
NOTE
If the start battery is completely discharged
and the vehicle has no normal electrical func-
tions, and the engine is then started using an
auxiliary battery or battery charger, the
Start/Stop function will be activated. The
engine can then be auto-stopped but may not
auto-start again due to an insufficient charge
level in the start battery.
To help ensure auto-start, the start battery
should be charged first. At a temperature of
approx. 60 °F (15 °C), the battery should be
charged for at least 1 hour, preferably using
an external battery charger. At lower tempera-
tures, the battery should be charged for
3–4 hours.
If a charger is not available, it is advisable to
disable the Start/Stop function until the bat-
tery is sufficiently recharged.
Related information
Start battery (p. 480)
Start/Stop (p. 383)
Battery symbols (p. 483)
Battery symbols
There are information and warning symbols on
the battery.
Wear protective goggles.
See the owner's manual for
additional information.
Keep batteries away from
children.
Batteries contain corrosive
acid.
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