• Always On USB and Charge in Battery Mode are enabled in UEFI BIOS of both computers, so that the
function works even when the computers are off or in hibernation mode. To enable Always On USB and
Charge in Battery Mode:
1. Enter the UEFI BIOS menu. See “Enter the UEFI BIOS menu” on page 49.
2. Click Config ➙ USB to enable Always On USB and Charge in Battery Mode.
To use the function:
• When no ac power is available:
The remaining battery power of computer A should be at least 30% and be 3% higher than that of
computer B. To check the battery status, see “Check the battery status and temperature” on page 31.
Connect the computers to each other with a USB-C to USB-C cable. In this situation, computer A works
as the power supply. Once the remaining battery power of computer A is lower than 30%, computer A
stops supplying power to computer B.
• When ac power is available:
Connect the computers to each other with a USB-C to USB-C cable. Connect one computer to ac power.
In this situation, ac power works as the power supply and both computers get charged.
Note: The actual charging speed using the Lenovo-unique P-to-P 2.0 charging function varies depending on
many factors, such as the remaining battery power of the computers, the wattage of the ac power adapter,
and whether you are using the computers.
Maximize the battery life
• Lower the brightness of the computer display.
• Turn off the wireless features when not in use.
• Use the battery until the charge is depleted.
• Recharge the battery completely before using it.
Set power button behaviors
You can define what the power button does according to your preference. For example, by pressing the
power button, you can turn off the computer or put the computer to sleep or hibernation mode.
To change what the power button does:
1. Right-click the battery status icon in the Windows notification area.
2. Click Power Options ➙ Choose what the power buttons do.
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T14 Gen 1, T15 Gen 1, P14s Gen 1, and P15s Gen 1 User Guide
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General
Weight and Dimensions
