tlp(8)

NAME
tlp - apply laptop power saving settings

SYNOPSIS
tlp command [parameters] [-- CONFIG_PARAM=value ... ]

DESCRIPTION
tlp applies power saving settings manually and controls battery care features.

COMMANDS

start
    Initialize tlp and apply power saving settings according to the actual power source. Also use to apply a changed configuration or to leave manual mode.

bat Apply the battery settings profile and enter manual mode. Manual mode means that changes to the power source will be ignored until the next reboot or tlp start is issued to resume automatic mode.

true
    Same as bat.

ac  Apply the AC settings profile and enter manual mode. Manual mode means that changes to the power source will be ignored until the next reboot or tlp start is issued to resume automatic mode.

false
    Same as ac.

usb Enable autosuspend for all USB devices except those excluded by default or in the configuration.

bayoff
    Turn off optical drive in UltraBay/MediaBay. The drive may be re-enabled by pulling the eject lever or pushing the media eject button on newer models.

Note: charge threshold and recalibration commands below work for specific laptop vendors and models only. Check the actual support status and the value ranges with tlp-stat -b. For details on charge thresholds also refer to the link at the bottom.

setcharge [START_CHARGE_THRESH STOP_CHARGE_THRESH] [BAT0|BAT1|BATx|CMB0]
    Changes the charge thresholds for the battery temporarily. If your hardware supports only a stop threshold, set the start value to 0. Configured charge thresholds will be restored at the next boot or by using tlp setcharge again but without the threshold arguments.

fullcharge [BAT0|BAT1|BATx|CMB0]
    Charge the battery to full capacity. This is done by applying vendor presets to the charge thresholds temporarily. Configured charge thresholds will be restored at the next boot or by using tlp setcharge without the threshold arguments.

chargeonce [BAT0|BAT1] (ThinkPads only)
    Charge the battery to the stop charge threshold once. This is done by temporarily lifting the start charge threshold. The configured start charge threshold will be restored at the next boot or by using tlp setcharge without the threshold arguments.

discharge [BAT0|BAT1] (ThinkPads only)
    Force complete discharge of the battery.

recalibrate [BAT0|BAT1] (ThinkPads only)
    Battery recalibration: completely discharge the battery and recharge to 100%. The latter is done by temporarily applying vendor presets to the thresholds. Configured thresholds will be restored at the next boot or by using tlp setcharge.

diskid
    Show disk ids for configuration.

-- CONFIG_PARAM=value ...
    Add configuration parameters to temporarily overwrite the system configuration (for this program invocation only).

NOTES
For laptops with more than one battery the selection works as follows:

    BAT0 - Main or internal battery

    BAT1 - Secondary or replaceable battery

EXAMPLES
Change thresholds of the main battery to 70 / 90% temporarily:

    tlp setcharge 70 90 BAT0

Charge the auxiliary battery to full capacity:

    tlp fullcharge BAT1

Recalibrate the main battery:

    tlp recalibrate BAT0

FILES
/etc/tlp.conf
    System-wide user configuration file, uncomment parameters here to override default settings and customization files below.

/etc/tlp.d/*.conf
    System-wide drop-in customization files, overriding defaults below.

/usr/share/tlp/defaults.conf
    Intrinsic default settings. DO NOT EDIT this file, instead use one of the above alternatives.

/run/tlp/run.conf
    Effective settings consolidated from all above files. DO NOT CHANGE this file, it is for reference only and regenerated on every invocation of TLP.

/etc/default/tlp
    Obsolete system-wide configuration file. DO NOT USE this file, it is evaluated only when /etc/tlp.conf is non-existent.

EXIT STATUS
On success, 0 is returned, a non-zero failure code otherwise.

SEE ALSO
tlp-stat(8), bluetooth(1), wifi(1), wwan(1).

AUTHOR
(c) 2021 Thomas Koch <linrunner at gmx.net>