View source for C2 USB Power ECR

The power limitation on USB power is currently 5W on production (C2) laptops.

===Increasing USB power to 7.5W===
To increase the maximum power draw to 7.5W, replace R281 with a 120K, 1%, SMD0402 resistor.  Please note that this decreases the maximum ambient temp. rating, and increases the total power dissipation of the laptop.  A laptop supplying 7.5W to the USB should always have a battery present.  If this power is going to be drawn from a single USB socket, it should be from one of the two sockets nearest the power button.