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Subject:Re: alternator--voltage vs amps
From:John Bange
Date:Wed, 12 Nov 2008 21:18:20 -0800

> if the current output is dependent on the RPM of the alternator. i.e.
> Does a 70 amp alternator put out 70 amps at idle?

No, but you probably won't hit 70A load either. You can always tell if
you're drawing more amps than your supply can handle efficiently when
you notice a drop in voltage.

> The good news for me is that I'm pretty sure the 90 am alternator I
> have on my VanaJetta is not going to somehow be too powerful for my
> Westy. Something I was thinking about recently.
>

Nothing to worry about there. You could have a 900A alternator, and
the only difference would be a little engine power lost due to having
to spin a 10x larger and heavier rotor. An alternator won't put out
any more amperage than the load connected to it asks for.

--
John Bange
'90 Vanagon - "Lastwagen"
'90 Vanagon GL - "Wiesel"

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