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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
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.
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.
Using a Power Delivery compliant USB Type-C charger with the
computer
The USB Type-C connector on the rear of the computer conforms to USB Power Delivery Specification. If
you did not carry the included ac power adapter with your computer, you have the option of using a qualified
USB Type-C charger (purchased separately) that is also Power Delivery compliant to charge the computer in
sleep or powered-off state. Lenovo branded USB Type-C chargers with the following listed maximum ratings
are tested to work with the computer. Chargers of other brands with the same ratings should also work but
are not thoroughly tested.
• 20 V, 3.25 A
• 20 V, 4.75 A
• 20 V, 5 A
• 20 V, 6.75 A
The rear USB Type-C connector is not designed as the primary power input connector. When the computer
is operating, the power supplied by the USB Type-C charger may be insufficient. As a result, the computer
may not operate at its full capacity and the battery charging may stop or is very slow. Use the included ac
power adapter whenever possible.
CAUTION:
When purchasing third-party USB Type-C chargers for use with the computer, choose a product that
is safety approved or certified. A disqualified charger may cause damage to your computer or pose an
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is in the Windows notification area. You can check the battery status, view
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