Maserati GranTurismo Owner's Manual page 322

Maintenance and Care
currents and to calculate the state of
charge and state of health of the battery.
This sensor is located in at the negative
post (–) of the battery.
For a successful charge/recharge
operation, the charging current must
flow through the IBS sensor as shown in
the picture.
• Turn the charger on and follow the
instructions on its user manual to
completely recharge the battery.
• When the battery is recharged,
turn off the battery charger before
7
disconnecting it from the battery.
• Disconnect first the terminal clamp
of the charger black cable from the
battery and then the terminal clamp of
the red cable.
• Reassemble the protection cover on
the battery positive post and the other
parts removed for this operation.
320
Maintaining Battery Charge
If you perform short daily trips
(approximately 16 km/10 miles), which
correspond to an annual total of 6000
km/4000 miles, or when the vehicle is
not going to be used for one week or
more, Maserati recommends connecting
the vehicle to a battery charger, to save
you the trouble of having to recharge the
battery. The battery charger will keep
the battery charged properly and at the
correct voltage levels required by the
systems and devices in the vehicle.
Before using the battery charger,
carefully follow the instructions
provided.
If you do not use a battery charger to
prevent the battery from going flat
when you are not going to use the
vehicle for long periods of time, you
need to check and recharge the battery
at least once every three weeks. Make
this check if you perform short daily
trips (approximately 16 km/10 mi)
which correspond to an annual total
of 6000 km/4000 miles. Please note
that allowing the battery to go flat
repeatedly can cause premature wear on
the internal cells and greatly reduce their
life, leading to problems with the ignition
system and other electrical/electronic
systems.
The Service Network is available
to advise you on how to recharge
your battery correctly and give you
useful information on battery care and
maintenance.
NOTE:
The Maserati Service Network can
provide you with any information about
the Maserati approved "Battery Charger
and Conditioner", available in the
"Genuine Accessories" range.
WARNING!
The process of charging or recharging
the battery produces hydrogen, a
dangerous gas that can explode and
cause serious injuries. When charging
or recharging the battery, follow the
recommended precautions at all times:
• always charge or recharge the battery
in a well-ventilated environment;
•
never charge or recharge a battery
that has frozen: it can explode due
to hydrogen trapped inside the ice
crystals;
• ensure that any sparks or open flames
are nowhere near the battery while it
is charging;
•
before using a charger to charge or
maintain the battery charge status,
carefully follow the instructions