To avoid draining your battery and lengthen its life, observe the following indications:
– when you park the vehicle, ensure the doors, tailgate and bonnet are closed properly;
– the ceiling lights must be off. The vehicle is however provided with an automatic system for switching off internal lights;
– do not keep accessories (e.g. sound system, hazard lights, etc.) switched on for a long time when the engine is not running;
– before performing any operation on the electrical system, disconnect the battery negative cable;
– battery terminals shall always be perfectly tightened.
IMPORTANT
A battery which is kept at a charge of less than 50% for any length of time will be damaged by sulphation leading to a reduction in cranking power and a higher risk of the battery electrolyte freezing (this may even occur at –10°C).
If the vehicle is inactive for a long period of time, refer to the “Vehicle storage” paragraph in section “Driving your vehicle”.
If you want to add accessories after buying the vehicle (alarm system, freehand phone kit, etc.) visit a Fiat Dealership.
They can suggest the most suitable accessories to get and check whether the electric system can support the required load or whether a larger capacity battery is required.
These devices will, in fact, run off the battery even when the key is not inserted (vehicle parked) and can deploy the battery.
The total intake of these systems (factory and after-market) must be less than 0.6 mA x Ah (of the battery) as shown in the following table:

See also:
Lane Change Assist
Tap the lever up or down once, without moving beyond the detent, and the turn
signal (right or left) will flash three times then automatically turn off. ...
Change Engine Oil Indicator System
Change Engine Oil
Your vehicle is equipped with an engine oil change indicator system. The “Change
Engine Oil” message will flash in the EVIC display for approximately 10 seconds
after a single c ...
Battery
The battery is of the “Limited maintenance” type: under normal conditions of
use the electrolyte does not need topping up with distilled water. ...


