In article ,
bert wrote:
In article , Andy Burns
writes
Huge wrote:

the reason people suggest disconnecting the
battery is that most modern cars have a substantial current drain even
when switched off (I've measured it at several hundred milliamperes).

Though they do progressively shutdown more and more systems over the
course of hours/days/weeks.

But they will still flatten the battery.

my Citroen C5 used to warn that the battery was getting low and certain
functions would be switched off,

--
from KT24 in Surrey, England