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Old 08-13-2009, 03:33 PM   #2 (permalink)
jedi_sol
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Thanks this will be very helpful some users on here .

Oh btw,
Quote:
Originally Posted by MetroMPG View Post
If converting to watts, you should also measure the system voltage at the same time switch each accessory on - the more current it draws, the lower voltage will sag. Watts = volts * amps. So 5A at 12.7v = 63.5 watts, but 5A at 11.8v = 59 watts.
Does this mean, put the DMM back to reading voltage and battery back to normal, then taking the voltage reading from the battery with the particular accessory on?
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