Quote:
Originally Posted by jhguth
P=VI, watts (power) equals voltage (potential) times amps (flow)
You can't just create or destroy power because you change the voltage (conservation of energy), if the voltage changes the current will change, and vice versa, but power will be constant.
inverters are inefficient and totally unnecessary considering the laptop runs on a DC power supply. if it's actually drawing 180W then worst case spend $15 and install a dedicated 12v power outlet or just hardware the charger.
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Sigh. OK. So changing the voltage in your equation doesn't change the wattage? Gotcha