Thread: Horsepower to spin alternator?
View Single Post
  #29  
Old 10-09-2022, 08:31 AM
Half-Inch Stud's Avatar
Half-Inch Stud Half-Inch Stud is offline
Ultimate Warrior
  
Join Date: Jul 2000
Location: BlueBell, PA or AL U.S.A.
Posts: 18,894
Default
Quote:
Originally Posted by Goatracer1 View Post
To generate 140 amps at 13 volts requires 2.44 hp. Volts times amps divided by 745.7 equals HP.
Yes. And the Alternator efficiency (at cruise) is booked at 65%. I think more HP is lost during Accel.

Reply With QuoteReply With Quote