Alfa Romeo Brera Owner's Manual page 226

IMPORTANT A battery which is kept
at a charge of less than 50% for any
length of time will be damaged by sul-
phation leading to a reduction in crank-
ing power.
Moreover, this might lead to a higher
risk of the battery electrolyte freezing
(this may even occur at –10°C). If the
car is inactive for a long period of time,
refer to "Car inactivity", in section "Cor-
rect use of the car".
If after buying the car, you want to in-
stall electric accessories which require
permanent electric supply (alarm, etc.)
contact Alfa Romeo Authorized Services
whose qualified personnel, in addition
to suggesting the most suitable devices
available at Lineaccessori Alfa Romeo,
will evaluate the overall electric ab-
sorption, checking whether the car's
electric system is capable of withstand-
ing the load required, or whether it
should be integrated with a more pow-
erful battery. In fact, since these devices
continue absorbing energy even when
the ignition key is off, they gradually run
down the battery.
The total intake of these systems (fac-
tory and after-market) must be less than
0.6 mA x Ah (of the battery) as shown
in the following table:
ximum
Battery Ma
admitted
stand-by intake
50 Ah 30 mA
60 Ah 36 mA
70 Ah 42 mA
90 Ah 54 mA
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