Lenovo (IdeaPad, Legion)

Capability

  • 2 modes: Full Capacity Mode, and Maximum Life Span mode.
  • The charging threshold are fixed at value 100% and 80% and are not customizable.
  • Full Capacity mode is the what Lenovo refers to as Conservative Mode disabled (100%).
  • Maximum Life Span mode is the what Lenovo refers to as Conservative Mode enabled (60 or 80% depending on model).
  • Maximum Life Span mode limits charging to 60% or 80% of battery level depending on the model.

Dependencies

  • No dependencies required.
  • Lenovo laptop that allows setting charging threshold are supported by mainline linux kernels.

Testing charging threshold using command-line

Charging mode can be set by using echo command in terminal.

To enable Conservative Mode

Require root privileges

echo '1' | pkexec tee /sys/bus/platform/drivers/ideapad_acpi/VPC2004:00/conservation_mode


To disable Conservative Mode

Require root privileges

echo '0' | pkexec tee /sys/bus/platform/drivers/ideapad_acpi/VPC2004:00/conservation_mode


sudo also can be used in place of pkexec in the above commands as both sudo and pkexec can be use to run commands in root mode. To make use of polkit rules, the extension uses pkexec.

The current threshold value can also be read using cat command in terminal.

cat /sys/bus/platform/drivers/ideapad_acpi/VPC2004:00/conservation_mode

If charging threshold are applied successfully using above commands, the extension is compatible.

Quick Settings


Gnome 43 and above Gnome 42

Extension Preferences


Back to top