On 26/04/2021 11:09, Dave Plowman (News) wrote:
In article ,
williamwright wrote:
On 23/04/2021 01:07, Fredxx wrote:

Couldn't the manufacturers fit a separate small battery dedicated to
supplying the quiescent items? One that would last maybe ten days.
With a user option to decide whether it should steal power from the
main battery when it became depleted?

At 50mA that would be less than the self discharge rate of a lead acid
battery.

I therefore don't see the point, it would also make a car even more
complex than it they are already. And you've have to replace two
batteries rather than the one. For some cars a battery change is already
a dealer operation.

The fact is that people are being inconvenienced all the time by the
quiescent drain preventing the car from starting. It shouldn't be beyond
the wit of man to find a solution.

The answer is very simple. Either use the car before the battery goes
flat, or charge the battery.

Cars run out of petrol too. No clever electronics can stop that - it
involves some sense on the part of the driver.

There is a fuel gauge for fuel, there isn't an equivalent for the
battery when left unattended.