Porsche CARRERA GT-2004 Manual page 163

Winter operation
The capacity and ability of the battery to store
power decreases at low outside temperatures.
Additionally, more power is consumed while start-
ing, and the headlights, heater, etc., are used
more frequently.
f Let your Porsche dealer test the battery before
winter sets in.
The battery will discharge more quickly if your ve-
hicle is not driven on a daily basis over a distance
of several miles. The more often you drive your ve-
hicle, and the longer the distance driven on each
trip, the more opportunity the vehicle's charging
system will have to recharge the batteries.
Replacing battery
The service life of the battery is subject to normal
wear; it depends greatly on care, climatic condi-
tions, and driving conditions (distances, loads).
f Only use an original Porsche battery, with the
correct part number, as a replacement.
f Please observe the disposal instructions for
batteries.
Battery care
The battery may only be worked on by an author-
ized Porsche dealer.
f To prevent premature discharging of the
battery, the trickle charger should be
connected if the vehicle stands for longer
periods of time (10 days or longer).
f
Practical Tips, Emergency Service
f f
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