Maserati QUATTROPORTE Owner's Manual page 304

Maintenance and Care
correspondence with 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
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
8
the battery positive post and the
access cover on the battery room.
302
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,