Charge The Computer - Lenovo ThinkPad X12 Detachable Gen 1 User Manual

Charge the computer

Use ac power
Notes: To maximize the life of the battery:
• Use the battery until the charge is depleted and recharge the battery completely before using it. Once the
battery is fully charged, it must discharge to 94% or lower before it will be allowed to recharge again.
Use P-to-P 2.0 (Peer to Peer 2.0) charging function
Both Thunderbolt 4 (USB-C) and USB-C (3.2 Gen 2) connector on the computer feature the Lenovo-unique
P-to-P 2.0 charging function. To use the function, ensure that Always On USB and Charge in Battery Mode
are enabled in UEFI BIOS of your 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. Press F1 to enter the UEFI BIOS menu.
2. Click Config USB, and then to enable Always On USB and Charge in Battery Mode.
• When no ac power is available:
Note: The remaining battery power of computer A should be at least 30% and be 3% higher than that of
computer B.
• When ac power is available:
Note: The actual charging speed of your computer depends 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.
.
Chapter 3 Explore your computer
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