Charging phone from laptop using USB cable - why is so slow ?

Why does phone charging from laptop using USB cable take so long ?
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10 May 2022 at 06:41 PM
Hi,

Charging the phone from PC using USB cable is slower, because USB port has lower amperage than standard charger plugged in the socket.
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12 May 2022 at 06:47 PM
Tim
Charging phone from laptop using USB cable takes hours, because USB 2 provides 5 volts / 0.5 amperes and USB 3 can provide 5 volts / 0.9 amperes.

Depending on phone model, the standard charger can provide 5 volts / 2.0 amperes.
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27 May 2022 at 04:31 PM
Ron
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