Hi again,
Checked the battery voltage again this morning. The car went on a 2 mile run yesterday with 3 stop/starts and idled while it warmed up for me to check the alternator output.
Battery reading this morning 12.62v. Thats a drop of only 0.02 volts in 24 hours. That looks better.
Yesterday I pulled all the fuses and found the drains as stated earlier.
Something happened today that I hadn't noticed before.
Took the car out and drove a 20 mile round trip.
The digital voltmeter generally read 14.2 to 14.4 volts. However a couple of times it dropped to 12.8 v for maybe 20 seconds.
When I got home and was parking up it was showing 12.6 v on idle. Never seen this before as the alternator voltage was always in play.
Got the multimeter on the battery and it read 12.6 volts on idle, put the headlights on and the volts went to 14.1.
Lights off, rev to 2000 12.6 volts, lift off throttle volts increase to 14.1 and then drop back to 12.6.
I checked all the fuses are in place.
Given that 12.6 volts at the battery should mean fully charged, would it be that the alternator is stopping charging until the battery drops below 12.6 ?
This may well be the way the charging system should work and I may have disturbed something during my search for the drain, but if this isn't as it should be, is there a charging relay on the car ?