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Uncompromised battery life

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

When the battery power is low, charge your battery by connecting your computer to ac power with the supplied power adapter. The 65 W ac power adapter supports the rapid charge function, the battery is 80% charged in about one hour when the computer is turned off. The actual charging time depends on the battery size, the physical environment, and whether you are using the computer.

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).

The illustration of charging the computer

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.
  • The battery may optimize its full charge capacity based on your usage. After prolonged periods of limited use, full battery capacity may not be available until you discharge to as low as 20% and recharge completely. For more information, refer to the power section of the Vantage app.

Use P-to-P 2.0 (Peer to Peer 2.0) charging function

The USB-C (Thunderbolt 4) 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:

  • Enter the UEFI BIOS menu.
  • Click Config ➙ USB, and then to enable Always On USB and Charge in Battery Mode.
The illustration of charging the computer

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.