How To Determine Alternator Amperage. Thus idle amperage is calculated at 2400 alternator RPM. 16 years of experience.
Check your cars manual or parts manual to see what your alternators maximum amperage should be. Check the alternator amperage Disconnect the voltmeter and connect an amperage meter if you arent using a multi-meter to your battery the same way as you connected the voltmeter. Place the red probe in the socket labeled A.
First Alternator used on.
Place the red probe in the socket labeled A. Thus idle amperage is calculated at 2400 alternator RPM. This is just a quick visual identification guide for Delco type alternators. You should have a stamp on the alternator with a part number and amperage.
