Inliners International Forums General Discussion Electrical Current draw from electrical components?

I once measured and HEI on the bench using a battery charger and a large electrolytic cap for filtering. It drew about one amp. I don't think the battery charger is very accurate but definately not 6-8 amps. I have no idea why some recommend 12 guage. 12 guage in your house is rated for 20 amps.