Posted by Steve@Advance on January 05, 2023 at 08:06:41 from (47.37.93.96):
In Reply to: Amps vs volts posted by rrlund on January 05, 2023 at 06:36:27:
A plug in battery charger is operating at a steady input of around 120 vac. It's internal electronics are designed to do whatever the engineer decided would work for the application, be it a simple transformer and rectifier, or a complex, regulated, automatic charger designed to cut back as the battery reaches full charge. The first will boil a battery dry if given a chance, the second will not.
A generator or alternator is a different animal. It is converting mechanical energy to electricity. It operates at a wide range of RPM, so it must be regulated to properly charge the battery AND not burn the battery, or it's self out. It also needs circuitry to not discharge the battery when the mechanical energy (spinning the armature or stator) is removed.
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