Charging at 15.1 volts. Anybody?

I took the old battery in today to get tested and it was bad. I replaced it with a excellent battery. Before sticking in the new battery, I cleaned and tightened all ground straps to block and battery. Stuck in the new battery and started the car. Car runs great. Checked the voltage and it read 15.0 volts at idle. Without a load on the battery such as lights or accessories it will run a little higher, I forgot this little fact. An exceptable limit on the alternator is 13.8 to 15.3 depending on the load. I did verify this in a few areas on the net. This is one of them, http://www.aa1car.com/library/charging_checks.htm

With a load on such as ac and radio it dropped to 14.1 volts. Well, I just thought I would do a follow-up to this thread. Thanks for everyones input. Christopher


Digital voltmeter? Where are you taking this reading of 15.0 volts. I've been a mechanic for 25 years and 15.0 volts is to high! It could lead to boiling your battery, burnt out bulbs and so on.