Using USB-C™ (Thunderbolt™) Charging Function

You can connect a USB-C™ device to charge a notebook PC battery or other external devices.

Option:

Thunderbolt™ connection may not be supported in some models.

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 can be charged at 10 W (5 V / 2 A), 15 W (5 V / 3 A), and 18 W (9 V / 2 A).
USB PD (Power Delivery) supports charging at 15 W (5 V / 3 A) or 18 W (9 V / 2 A) when connected, whereas a regular USB device supports general charging at 10 W (5 V / 2 A).
When the remaining battery capacity of the notebook PC falls below 10 %, both USB PD and regular USB device support charging at 10 W (5 V / 2 A) only.
Always-On Charging is supported only with USB-C™ ports, but not with the regular USB ports.
If you connect an AC adapter while the notebook PC is being used to charge an external device, it may take more time to charge the notebook PC.

Using the Charging Function

LG Control Center can be used to set one of the three charging functions: Automatic, Sink and Source.

Tip:

For information on how to use LG Control Center, refer to [Using Software] > [LG Control Center].

Automatic

The operation mode is automatically selected depending on the charge settings of the connected device.
- 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.)
Sink

The connected device is used to charge the notebook PC.

Tip:
If the connected device is set to Sink, the charging function does not work.
Source

The notebook PC is used to charge the connected device.

Tip:
If the connected device is set to Source, the charging function does not work.

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:

When you set the charging function for a USB-C™ port in LG Control Center, beware of the following:

If you changed the charge setting, it is recommended that you remove the USB-C™ cable and re-connect it.
If you restart the system or turn off the power, the charge setting is changed to [Automatic].
If the charge setting is set to [Sink], some of the devices connected to the USB-C™ port may not work properly.
Always-On Charging only supports the ON (automatic) and OFF options.
If the power consumption of the notebook PC is larger than the power supply from the external device, the battery may be consumed gradually.