Use ac power
Power source of the ac power
adapter:
Power: 65 W
Sine-wave input at 50 Hz to 60 Hz
Input rating of the ac power adapter: 100 V to 240 V ac, 50 Hz to 60 Hz
Output rating of the ac power adapter: 20 V dc, 3.25 A
Battery charging is also affected by its temperature. The recommended temperature range for charging the battery is between 10°C (50°F) and 35°C (95°F).
Note: Some models may not
ship with ac adapters or power cords. Use only the certified adapters
and power cords provided by Lenovo that comply with the requirements
of relevant national standards to charge the product. It is recommended
to use the Lenovo qualified adapters. You can refer to https://www.lenovo.com/us/en/compliance/eu-doc.
Note: 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 USB-C connectors 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:
Press F1 to enter the UEFI BIOS menu.
Click , and then to enable Always On USB and Charge in Battery Mode.
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.