Quote:
Originally Posted by MoulaZ
... For those complaining it would sap power, there was a standalone 12V option, a '2kw' system... but a 2kw compressor on a 12V system is an enourmous drain (166A+) if my math is right? Surely I'm missing something.
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Driving the compressor via a belt will be more efficient than driving a generator/alternator to produce electricity to drive a motor to drive the compressor. No conversion of energy is perfect - usually far from it.
But, yeah, it takes about 167A at 12V to produce 2kW.
P = I * E = 166.6A * 12V = 2kW