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International Automotive Technicians Network
Re: erroneous interpretations of KVL and KCL
Posted to Technical Theory Forum on 4/10/2023

George here is a formula to calculate the terminal voltage of a battery. Vbat=R/R+r*E

Where Vbat = terminal voltage

R= Req of all other vehicle loads

r= battery internal resistance

E= alternator voltage

example: Vbat=.333/.333+.02 *14=13.20v

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