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).
- You can check the battery temperature in Lenovo Vantage or Lenovo PC Manager.
- 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.
Set power button behavior
- Step 1. Type Control Panel in the Windows search box and then press Enter. Open the control panel and view by large or small icons.
- Step 2. Select the power options and then click choose what the power button does.
A power plan
A power plan is a collection of power-saving settings made available by an operating system. With a power plan, you can set idle time-outs for different hardware components to enter a low-power state. The default power plan and some of its idle time-out settings are listed below for computer models pre-installed with Windows.
The listed settings are active when the computer is connected to an electrical outlet. If your computer include a built-in battery pack, a different collection of time-out settings is set to take effect when the computer is operating on battery power.
- Default power plan: Balanced
- Turn off the display: after 10 minutes
- Put the computer to sleep: after 10 minutes
Note: To wake the computer from the sleep state, press the power button or any key on the keyboard.
Change or customize a power plan
- Step 1. Type power plan in the Windows search box and then press Enter.
- Step 2. Customize a power plan of your preference.
Set performance mode
Your computer can work in different performance modes. The performance and power consumption of the computer vary in different performance modes. Press Fn + Q to cycle through different performance modes.
