Quote:
Originally Posted by Bigdav160
The difference in the two voltmeter readings is just a reflection of the resistance in the circuit between the two points. It doesn't help with diagnosis of the battery or generator.
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Please revisit my earlier post; I enumerate a number of scenarios where you can use the delta in voltage to understand what is currently happening in the charging system, the state of the battery, which way current is flowing, and so on.
Besides, the delta in voltage is all the ammeter tells you, so if that's not useful, the ammeter was a pointless gauge. I disagree.