Using USB-C™ (Thunderbolt™) Charging Function

You can connect the USB-C™ device to charge a notebook PC battery or an external device, and the operation mode is automatically selected depending the charge settings of the connected device.

To charge a notebook PC battery, the external device (USB PD Charger, notebook PC, etc.) should support USB Power Delivery 10 W (5 V / 2 A) or higher profile.
The external devices that use the USB-C™ port support 10 W (5 V / 2 A) and 15 W (5 V / 3 A).
A USB device compatible with USB PD (Power Delivery) supports charging at 15 W (5 V / 3 A), whereas a regular USB device supports charging at 10 W (5 V / 2 A).
USB PD batteries cannot be charged using the USB-C™ port of the notebook PC.
Always-On Charging is supported only with USB-C™ ports, but not with the regular USB ports.
If you connect an adapter with a lower output than the rated adapter, it may take more time to charge the notebook PC.

When the connected device is set to Automatic (charging the notebook PC or a connected device. Charging the notebook PC by using the mobile phone is not supported.)
When the connected device is set to Source (the notebook PC is charged.)
When the connected device is set to Sink (the connected device is charged.)

Tip:

The charging status of the external device being charged is not displayed on the notebook PC.

If you connected a smartphone, you should select "Charge mobile phone" on the smartphone screen to charge the phone battery.

Caution:

If the power consumption of the notebook PC is larger than the power supply from the external device, the battery may be consumed gradually.