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External keyboard power usage

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Senior Member - OP
Thanks Meter 0
Posts: 148
Join Date: Apr 2013
Default External keyboard power usage

Recently I bought an "Y" OTG cable which has additional charger input. I own a Samsung Galaxy Note 8.0 tablet, and unfortunately it doesn't charge through this cable. Anyway, asking teoretically, if I connect external keyboard through Y cable with charger plugged in, will this keyborad be charged from tablet or charger, or maybe charger is obsolete and keybord will drain battery anyway?
Junior Member
Thanks Meter 14
Posts: 25
Join Date: Oct 2010
you need a kernel with usb otg + charge support. And a cable that emulates a multimedia / audio dock.

I made one of this cable, with a 65K resistor and works great.

Take a look at and at
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