How Many Amps Should An Alternator Put Out. I checked mine and the volts go up a couple of tenths at without reving the motor. These alternators also typically come with a 10 to 15 percent reserve to handle additional accessories.
2001 was the oddball year they didnt have the 145 amp AD244 yet and most of the trucksTahoes etc came with 105 amp alts and the. This is on a 51 amp Prestolite alternator that is typically used on marine engines. Check the voltage a day or two after a full charge and before you go out.
A DL style will put out about 8 amps at idle where an SI will put out 35 or more.
An alternator should put out between 135 and 15 volts of power. This is on a 51 amp Prestolite alternator that is typically used on marine engines. I checked mine and the volts go up a couple of tenths at without reving the motor. Get as close to max output at 4000 rpms as.
