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alternator hp draw
I found this formula to calculate how much hp is required to run your alternator.
amps x volts = watts
745.7 watts = 1 hp
hp x 15% = hp loss
hp +hp loss = total hp used
example
55 amp x 14.9v = 819.5 watts
819.5 watts / 745.7 = 1.098 hp
1.098 hp x 15% = 1.26 hp
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