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spoke spoke is offline
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Join Date: Dec 2005
Location: Allentown, PA
Posts: 875
I did some voltage and current tests on the car with the engine on and off with the old battery.

The voltage at idle was 12.5 to 13V. This seems low.

After starting the car and idling, the voltage was about 12.5V and the charging current was around 1amp. I expected this current to be higher.

I don't have experience with the 911 alternator. What can I check or test to make sure the alternator is working correctly?
Old 05-25-2013, 06:22 PM
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