Quote:
Originally Posted by Nick_1964
But also a second thing can occurs... and I have to write this from memory so it can be possible that I explain it the other way around but that doesn't is important for the story.
An usb outlet has 4 lines, 1,2,3, and 4.
Point 1 gives 5 volts, 2 is minus data , 3 is plus data, 4 is zero for loading.
Some adapter makers just put point 2 and 4 together, they are both minus eh...
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It sounds like it's an Apple charger, that's one of the ways their nasty proprietary chargers worked.
Standard charging-only ports have the two data lines shorted together. If they're disconnected then the charger shouldn't be delivering more than half an amp (technically a tenth) whereas shorting them proclaims the charger is Battery Charging Spec compliant and can provide 1.5A.