Question

At what RPM does an alternator start charging?

Answer 1

These rpm, along with the pulley ratio, directly affect an alternator's performance and life expectancy. An alternator has a normal range of operation. Most alternators need to spin at about 2,400 rpm at idle, have their maximum output above 6,000 rpm, and should never exceed 18,000 rpm.

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Answer 2

Answer:

On 60 Rpm the alternator will charge.