Quote:
Originally Posted by cfg83
No, but I was thinking about that too. I think my alternator is rated up to 95 Amps, but I have an ammeter (for something else) that goes to 60 Amps on the dial. I am (obviously) guessing that is too small.
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That should be OK. The alt is rated to deliver way more current than you typically use. It has to be able to delivery a battery charging current while also running every electrical accessory in your car.
I guesstimated that my car takes 288 watts or 24 amps to run the engine, cruise control and parking lights. I don't have a DC ammeter (other than the 10A on my DMM) so I haven't actually confirmed this.
But you should be OK measuring current with a 60 amp limit.