How to turn any usb cable into a power only cable.
Usb power only extension cable.
We want to remove the middle pair and leave the outer pair.
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While a device cable has data and power only the power from the extension is carried through.
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A usb plug has four pins.
Let me know what you think.
The inner pair is for data.
The idea would be to cut a small usb extension cable in half and put about six feet of two conductor cable 18 gauge between them much less voltage drop than the 24 26 gauge power cord in the cables.
Are the 10k pull up resistors the right value to let the nook know this is a charger only cable.