On 02/05/2020 12:31, Andy Burns wrote:

Dave Plowman wrote:

wonder just how hard an alternator charges a battery after a cold
start. In amps - given virtually no car has an ammeter these days.

They may not have an ammeter on the dashboard, but they do have one on
the CAN bus.

http://lh5.ggpht.com/_lF5XJ5xAktU/TOSPHKoUU4I/AAAAAAAAABg/mRTCnyRQk8E/s800/vcds_battery.jpg

Alternators are good for at least 15A. I wouldn't be surprised if they
can't mostly manage over 50A if needs be

Oh.. treble that - apparently 45A - 200A is the range...

https://www.powerstream.com/car-battery-faq.htm

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