on ac power
on battery power
For models with Windows 11
The Intelligent Cooling feature is adjusted through Windows Settings.
1. Right-click the battery icon in the task bar to access power and sleep settings.
2. Locate the power section and choose one of the following power modes.
a. Best Power efficiency: power consumption, fan speed, and performance are lowered to get your
computer quieter, more eco-friendly, and to get the best battery life.
b. Balanced: power consumption, fan speed, and performance are balanced.
c. Best Performance: the maximum performance is prioritized, allowing higher temperature and fan
speed.
Manage power
Use the information in this section to achieve the best balance between performance and power efficiency.
Check the battery status
Go to Settings ➙ System to check the battery status. For more details about your battery, refer to the
Vantage app.
Charge the computer
Use ac power
Power source of the ac power adapter:
• Power: 45 W or 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, 2.25 A or 3.25 A
When the battery power is low, charge your battery by connecting your computer to the 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).
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
.
Chapter 3. Explore your computer 29
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