User Manual - Page 493

For 2017 VOLVO XC90.

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MAINTENANCE AND SERVICING
491
Dimensions, L×W×H in.
(mm)
5.9×3.5×5.1
(150×90×130)
Capacity (Ah) 10
When replacing the start battery or support
battery in a vehicle with Start/Stop, an
Absorbed Glass Mat (AGM) must be used.
The greater the current consumption in the
vehicle, the more the generator has to oper-
ate and the battery is charged. This increases
fuel consumption.
When the start battery's charge is below the
minimum permitted level, the Start/Stop
function will be disabled.
When the Start/Stop function is temporarily disa-
bled due to high current consumption:
The engine will auto-start, even if the brake
pedal is depressed.
The support battery does not normally required
more service than the start battery. If questions
arise, consult a Volvo retailer or trained and quali-
fied Volvo service technician.
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. 488)
Start/Stop (p. 400)
Conditions for Start/Stop (p. 402)
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