Asus UX31A - Manual (Page 58)

58 Notebook PC User Manual
3. The system automatically selects both Enable quick charge
when the system is running and Enable quick charge when
the system is in sleep/hibernate/shutdown mode. You can
deselect any of these two options, if necessary.
4. Move the percentage slider to the left or to the right to set the
limit for charging devices.
5. Click OK to save the settings made. Otherwise, click Cancel.