On 01/09/2016 09:20, The Natural Philosopher wrote:
On 01/09/16 09:12, Scott M wrote:
harry wrote:

NOT a good idea on some modern cars.
The on board computer may loose it's program if disconnected.

Is there, literally, anything you're not wrong about?

Well to be fair SOME onboard computers may lose SOME of their
*configurations*


Examples a car radio anti-theft kicking in and needing the code to be
re-entered.

I was thinking you'd need the radio's code if you disconnected the
battery for that long. OTOH the OP has tested all this by running the
battery right down, and he hasn't complained about the radio not working
or the immobiliser stopping the car working.




*some* immobilisers kicking in, and the car won't start

*some* other systems losing their marbles. ISTR that sometimes window
warning lights come on until various resets establish where 'window
closed' is..