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Thread: using USB ports on internation flights
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Old Jun 24, 2017 | 5:54 pm
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CPRich
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Originally Posted by 12FLYER34
Anyone know how these USB ports be used to charge a notebook computer or are they only for smart phones and pads?
USB typically puts out 500mA to 1A at 5V, or 2.5-5W. Laptop chargers are typically in the 50-70W range or greater (4A at 15V for the one next to me right now). A USB port could charge your phone, maybe a tablet, certainly not a notebook/laptop.
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