System Operation Modes; Rechargeable Battery Pack - Lenovo Yoga Book 9i User Manual

System operation modes

Lenovo has preset several modes in which your computer can operate. The maximum attainable
performance, power consumption, and speed limit for the heat sink fan vary between the operation modes.
Consider the following conditions when you want to switch operation modes.
• The environment where you use your computer, and
• The tasks running on your computer
You can switch the operation mode in the pre-installed app Lenovo Vantage, Lenovo Smart Engine, or
Lenovo PC Manager. As a shortcut, you can also use the key combination Fn + Q. Three modes are usually
available for most Lenovo computers. The following table lists the operation modes and the recommended
conditions for each mode.
Note: The operation modes listed in the table are descriptive and may not be the same as those displayed
by the app.
Table 6. Operation modes and their recommended usage conditions
Operation mode
High Performance
Auto (Balance)
Power Saving (Quiet)
Note: In Auto (Balanced) mode, the computer dynamically switches between High Performance mode and
Power Saving (Quiet) mode depending on the tasks running on the computer.

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.
Recommended conditions
• Your computer is plugged into an electrical outlet.
• You want the best performance, and
• You don't care if the fan makes a little noise.
You plan to frequently switch between different computer tasks over a period time.
• Your computer is operating on battery power, or
• You want the computer to be as quiet as possible.
.
Chapter 3 Maximize productivity with Yoga Book 9 13IRU8
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