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people living in other countries and regions, consult a qualified electrical engineer for how to select a
safety approved electric charger.
The Novo Button menu
The Novo Button menu can be displayed before the operating system starts. From the menu, you can
choose to
• Open the BIOS/UEFI setup utility
• Open the boot device selection menu
• Open the Windows startup options screen
Note: From the Windows startup options screen, you can then choose to
Start your computer using a recovery drive
Reset your computer
Open advanced options screen
Open the Novo Button menu
Step 1.
Turn on or restart the computer.
Step 2.
Press F9 repeatedly.
Rechargeable battery pack
Your computer includes a built-in, rechargeable battery pack that makes mobile computing a reality. When
the computer is plugged into an electrical outlet, the battery charges. If you use the computer when you
don't have access to an electrical outlet, the battery discharges to supply electricity that the computer
system requires for operation.
You can charge the battery any time you want. The battery packs of Lenovo computers support multiple
charging modes that are suitable for different power usage habits. You can switch the battery's active
charging mode in Lenovo Vantage, Lenovo PC Manager, or Lenovo Smart Engine.
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.
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.
Normal mode
Normal mode is the most basic charging mode. In normal mode, it typically takes 2 to 4 hours for the battery
to charge from 0% to 100%.
Rapid charge mode
If you want the battery to be charged faster than in normal mode, switch the battery charging to rapid charge
mode. The following table lists the estimated time needed for batteries in rapid charge mode to be charged
to 70% and 100% respectively.
.
Chapter 2
Explore your PC
21
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