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plugging a laptop into a car cigarette lighter
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12-23-2009, 03:47 AM
rowan
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Join Date: Mar 2002
Location: Australia
Posts: 17,393
Looking at it another way... if the AC power supply and DC-AC inverter are both 80% efficient, you'll be wasting around a third of your input power in conversion losses (which will mostly be emitted as heat)
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