Car battery runs down!

tickman

alternator giving 14+ volts so seems ok. i will try the fuse thing as well!
i think i will be busy!
T

espresso

tickman wrote:

alternator giving 14+ volts so seems ok. i will try the fuse thing as well!
i think i will be busy!
T

Another possibility is that one of the diodes in the alternator has failed or gone leaky, I think that there are 9. When this happens, it will still charge but the ignition light in the dash may glow very dimly i.e. not necessarily visible in daylight.

Something else to keep you busy!

Do let us know the outcome.

sicker

Don't think the alternator is suspect. The car is lying idle(no need for charging) for a few days so alternator does not come into the equation.

John

albertross_2

If the alternator doesn't charge the battery up in the first place, it is potentially part of the problem.

espresso

sicker wrote:

Don't think the alternator is suspect. The car is lying idle(no need for charging) for a few days so alternator does not come into the equation.

John

But if an alternator diode has failed or gone leaky it could provide a discharge path for the battery!

:eek:

tickman

so it could also be a diode in the alternator, is there any way if checking this on the car, something else to add to the to-do list! oh joy!