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Ty

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Manufacturers of automotive electronics are supposed to test against ISO 7637-2, test pulse 5a, which is the "standard" load dump.

In reality, the magnitude of the pulse depends on how much current the alternator was sourcing at the time (more = bad) and how fast it was spinning at the time (faster = bad). Disconnecting a nearly charged battery at idle wont hurt much.

But why risk it?
Good point. That's a practice I will discontinue now. Thanks.
 
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