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Old February 5th 19, 01:34 AM posted to rec.autos.tech,sci.electronics.repair
arlen holder
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Posts: 10
Default Engine run time to keep battery charged

On Tue, 5 Feb 2019 01:30:54 -0000 (UTC), arlen holder wrote:

> Let's assume it takes five to ten seconds to start it, at 500 amps, where
> the maximum _power _would be 10 seconds times 500 amps, which means you
> sucked out 5,000 Coulombs (i.e., 5000 amp seconds) if the math is right.


Ooops... Coulombs ... not power... (power would be via P=IV or I^2R but
not amp seconds)...

(I hacked that out in a minute on the run, so, please correct where I err.)
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