Please help me understand something in a vehicle electrical system.

Ian0

Joined Aug 7, 2020
4,821
From the point of view of this situation - what happens during a transient - it doesn't matter whether we think of it as a voltage source or a capacitor, what really matters is its series impedance.
For a brief time period, both battery and capacitor can be considered as a Thévenin voltage source in series with an amount of inductance and resistance.
 
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