Squareback vs round back alternator?

feeds the voltage regulator with 100% battery voltage
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The regulator gets voltage from whatever it is closest too. When the engine is running, most of the time its not really 'battery' voltage.
We unfortunately commonly use 'battery' when we mean power from either battery or alternator. Just like we say '12 Volt system' when its regulated to run around 14 Volts.
So I knew you meant.
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