That's very cool Fabio, I wonder why the difference ?
I normally parked on my garage the Maranello without insert the alarm .
On my old F550 the first time I thought that the battery was dead, the second time that i discovered the dead battery, i did a check with my brother, that is an electronic specialist, and we discovered an big electric absorption (400mA) , after checked on WSM and on it was printed the "normal electric absorption" about 30-50 mA !
My 550 absorbed 10 times much, after further checks we found the problem was on the alarm system, if we disconnect the absorbtion go down.
We changed one components (i not remember which) but no change ...
the more easy solution was to disconnect the battery every time by means of the switch that is near the battery, problems solved for ever ....
This solution is ok for the 550 because have the throttle bodies moved by steel wire rope, for the 575 (and all the car that have the electric throttle bodies), every time that you disconeect the battery end riconnect is necessary time for the ECU for the calibration of them.
This effect is clearly noticeable at the engine start after battery reconnection :
- F550 every time the engine have a perfect idle
- F575 have not perfect idle for around 10 min.
Result: fortunately my 575 HGTC have low electric absorption and also after 3 weeks she staring without problems, however she will be parked for over 3 weeks i connect to a battery charge made by my brother.