DC-DC Laptop Power Adapters
DC-DC laptop power adaptors are generally used to supply power to your notebook computer from a 12V power supply, either from your vehicleâ€™s battery or in an aeroplane. This is achieved by stepping up the input voltage to the desired output voltage. Using a DC-DC adapter is far more efficient than using a DC-AC inverter to generate 220V AC from your battery, which your notebook power supply then converts back to DC but at a higher voltage (typically 16 to 22V) to run your notebook.
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