Google Nexus 5x and 6P

Re:Google Nexus 5x and 6P by baddox on Tuesday September 29, 2015 @02:47PM (#10298573)

So does that mean that normal USB A connector for some reason can't handle the current? That seems odd.

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Re:Google Nexus 5x and 6P by sbierwagen on Tuesday September 29, 2015 @03:01PM (#10298669)

Yes, in fact. USB1 tops out at 2.1A, USB3 here is 3A. (Watts is volts times amps. 15W/5V = 3A)

USB Power Delivery chargers can deliver quite a lot more.

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Re:Google Nexus 5x and 6P by baddox on Tuesday September 29, 2015 @04:49PM (#10299529)

I'm only talking about the physical connector.

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Re:Google Nexus 5x and 6P by sbierwagen on Tuesday September 29, 2015 @04:52PM (#10299545)

Well if you go by the spec then USB1 and USB2 can only deliver 0.5A. Apple seems to have settled as 2.1A as the most current you can run through a USB connector without getting it too hot.

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Re:Google Nexus 5x and 6P by Dylan16807 on Wednesday September 30, 2015 @02:26AM (#10302138)

The power delivery spec requires special cables but allows 5 amps over normal* type A connectors.

*except for a detection mechanism for higher-power cables

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Re:Google Nexus 5x and 6P by tjohns on Tuesday September 29, 2015 @04:09PM (#10299239)

Not sure about the connector, but I have heard reports that some cheaper USB cables with thinner-gauge wires already cannot handle the current from some chargers that are on the market.

I can imagine USB-C only makes this more of a concern, since the USB Power Delivery spec allows up to 5 A @ 20 V.

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