Battery Life

So at first, most distros ship with power-profiles-daemon.

This app is good for changing profiles but doesn’t give you the best battery life, so we can remove it by running:

sudo pacman -Rns power-profiles-daemon

sudo apt purge power-profiles-daemon

sudo dnf remove power-profiles-daemon

Now we can install TLP, by running:

sudo pacman -S tlp

sudo apt install tlp

sudo dnf install tlp

Now configure TLP:

sudo systemctl mask systemd-rfkill.service
sudo systemctl mask systemd-rfkill.socket
sudo systemctl mask power-profiles-daemon.service
sudo systemctl enable --now tlp
sudo tlp start

Now you can have better battery life, it will last longer after charging. This doesn’t improve battery health though

Battery Health

To get better battery health:

Run: ls /sys/class/power_supply/BAT0/

If you have charge_control_end_threshold then you can continue, if not then consider getting a better laptop.

Create a custom service to set the battery maximum charge to 80%:

sudo nano /etc/systemd/system/battery_charge_threshold.service

[Unit]
Description=Set the battery charge threshold
After=multi-user.target

[Service]
Type=oneshot
ExecStart=/bin/bash -c 'echo 80 > /sys/class/power_supply/BAT0/charge_control_end_threshold'

[Install]
WantedBy=multi-user.target

sudo chmod 644 /etc/systemd/system/battery_charge_threshold.service
sudo systemctl daemon-reload
sudo systemctl enable battery_charge_threshold.service --now