Answer
Oct 02, 2025 - 07:20 AM
This alternator delivers up to a nominal 250 amps, which provides significant electrical output for high-demand systems or larger battery banks, making it especially valuable for marine and RV applications where power needs are substantial. As with all alternators the actual output depends on the speed of rotation and the temperature of the alternator. As rpm increases output increases until the output flattens out around 6000 alternator rpm. As alternator temperature increases the output decreases. The two lines on the graph below represent the 250 amp alternator in hot and cold configurations. In reality when it is in use it is always going to be hot so the lower of the two lines is what you can expect in everyday use.
