Q
does revving the engine help jump a car
I'm a seasoned industrial engineer with a keen interest in machine learning. Here to share insights on latest industry trends.
Revving the engine in the donor car during a jump-start can potentially help, but it's not strictly necessary. The key idea behind a jump-start is to use the working battery in the donor car to provide enough power to turn over the engine in the car with the dead battery. Revving increases the alternator's output, thus supplying more electrical power to the dead battery. However, modern alternators operate efficiently across a broad RPM range, implying revving might not significantly speed up the process. A stable idle should suffice to charge the dead battery, although slightly increasing RPMs can help in cold weather or if the battery is severely depleted. Always follow safe procedures and check the vehicle’s manual for specific recommendations.
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