Like said, voltage regulators are temperature compensated. Some are very active, some are not. Some read battery temperature through a sensor under the battery , most don't. Some regulators for continuous use like farm tractors running for many hours full bore have a lower set point to reduce overcharging. When IH started using the lower voltage regulators , most thought the alternator was defective. That being said, normally when checking for full rated output of a alternator, you load the battery until it drops to 13 volts and at that voltage the alternator should be capable of turning out it's rated amperage, like 100 amps for a l00 amp alternator or within 90 percent of that. So, you can see , that voltage will normally drop some when using a lot of current.
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Today's Featured Article - My Ford Golden Jubilee - by Troy Estes. This article is about my '53 Ford Jubilee and a story that starts with taking the tractor to my brother's Starter/Alternator Rebuilding shop for a wiring fix. The generator was shot as well as all the wiring. I dropped off the tractor expecting a transformation from a 6 volt to a 12 volt system utilizing the original generator housing, and a total rewiring of the whole tractor. The front end center pin bushing was worn also so I ask that they replace it if they had time. Well, that’s wha
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