User's Guide

Table Of Contents

Chapter 3. Explore your computer

Manage power

Use the information in this section to achieve the best balance between performance and power efficiency.

Check the battery status

The battery status icon or is in the Windows notification area. You can check the battery status, view

the current power plan, and access battery settings quickly.

Click the battery status icon to display the percentage of battery power remaining and change the power

mode. A warning message is displayed when the battery is low.

Charge the battery

When the remaining battery power is low, charge your battery by connecting your computer to ac power.

The battery is fully charged in about two to four hours. The actual charging time depends on the battery

capacity, 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).

Note:

You can check the battery temperature in Lenovo Vantage or Lenovo PC Manager. If it is not shown in the

app, the UEFI/BIOS firmware may not be up-to-date. Try updating the firmware to its latest version and

re-open the app.

To maximize the life of the battery, once the battery is fully charged, it must discharge to 94% or lower

before it will be allowed to recharge again.

To extend your battery’s lifespan, 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 Lenovo

Vantage.

Power input through a USB-C port

The USB-C port on the rear side of your computer supports power input up to 100 W. Some external

devices, such as a dock or display, may include a USB-C port that supports power output greater than 45 W.

If such a device is connected to this rear USB-C port, it is capable of providing power to your computer.

In another scenario, if you carry your computer around without the included ac power adapter, you may use

a capable USB-C charger to provide power through the rear USB-C port. In both scenarios, the output

power of a USB-C charger or the USB-C port on a dock or display should be at least 45 W in order to provide

power to your computer. The following table lists the charging capability of a USB-C port on a charger or an

external device based on its maximum output power.