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A comment on USB inventor explains why the connector was not designed to be reversible. Parent comment

Re:USB inventor explains why the connector was not designed ... by cesarb on Monday October 09, 2023 @06:32PM (#37826281)
> The power bank was sucking power from my phone at about 3.4 watts.

At least on Android, there's an option to change the power direction (IIRC, it's in the same place where you choose the data connection mode). I have to use that option to switch the direction whenever I use the USB-C cable to charge my phone from my laptop, otherwise it tries to charge the laptop from the phone.

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Re:USB inventor explains why the connector was not designed ... by Izkata on Monday October 09, 2023 @07:15PM (#37826651)
I know I have that option for wireless charging, but at least for this power bank I can't switch the direction. It says on that screen that the connection is controlled by the other device and fails to switch.
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