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Dave Plowman (News) Dave Plowman (News) is offline
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Default Car battery charging current.

In article ,
wrote:
I guess everyone is talking Of the order 80 Amps and higher without
thinking. A casual observation of cables that carry the currents are
not thick to carry such high currents and such high current handling is
a safety hazard. Also, given the fact that cars move and hence the
vibration will cause heavy sparking and damage the wiring. Only the
cable from battery to the starter motor is thick as it carries a peak
current of upto 400 amps At engine cranking moment but then to a
fraction of a second and not continuously!


If you have a 100 amp alternator - quite modest these days - the output
cable will be capable of handling 100 amps. But that goes straight to the
battery.

Other circuits in the car use the appropriate cable size.

--
*I don't feel old. I don't feel anything until noon. Then it's time for my nap.

Dave Plowman London SW
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