Yes, and that's why alternators have voltage-regulators.
Large alternators are often installed to keep up with high demand at low speeds. That because a car or truck might have headlight. fog lights, large stereo amp, DVD player, AC, etc. all drawing power at once. Come to a stop light and have the engine idling, and an alternator might to supply 60 amps just to prevent battery drain.
On a side-note, my diesel trucks with dual batteries easily call for 60 amps after first starting. That's only 30 amps per battery.
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Today's Featured Article - Restoration Story: 1964 JD 2010 Dsl - Part 2 - by Jim Nielsen. Despite having to disassemble the majority of my John Deere 2010's diesel engine, I was still hopeful I could leave the engine-complete with crankshaft and camshaft-in the tractor. This would make the whole engine rebuild job much easier-and much less expensive! I soon found however, that the #4 conrod bearing had disintegrated, taking with it chunks of the crankshaft journal. As a resul
... [Read Article]
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