tlp - Man Page

apply laptop power saving settings

Examples (TL;DR)

Synopsis

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

Description

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

Commands

start

Start tlp and apply power saving profile for the actual power source. Also use to apply a changed configuration or to leave manual mode.

bat

Apply battery 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

Alias for bat.

ac

Apply AC 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

Alias for ac.

usb

Enable autosuspend for all USB devices except those excluded by default or via 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.

setcharge [start_threshold stop_threshold] [battery]

Change battery charge thresholds 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 [battery]

Charge 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 [battery]

Charge 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 [battery] [target_charge_level]

Force a complete or partial discharge of the battery while on AC power.

recalibrate [battery]

Perform a battery recalibration while on AC power: 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

Print disk ids for configured drives.

--version

Print TLP version.

-- CONFIG_PARAM=value ...

Append configuration parameters to a command. These temporarily override the system configuration during execution of that command only and are not kept afterwards. Disclaimer: this feature exists for the sole purpose of test automation during TLP's development. It is provided as is and there is no support whatsoever.

Notes

Availability of the above battery care commands and the possible charge threshold values always depend on laptop vendor or brand, Linux kernel version and TLP version. Check for actual availability, threshold ranges and battery names with tlp-stat -b. Follow the link in the See Also section for details.

For laptops with two batteries, the secondary battery must be specified as a command parameter in order to select it. In many cases the main battery will be BAT0, the secondary battery BAT1. When in doubt, the output of tlp-stat -b, which lists all batteries, can help.

Examples

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

tlp setcharge 70 90

Charge the secondary battery to full capacity:

tlp fullcharge BAT1

Recalibrate the main battery:

tlp recalibrate

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), nfc(1), wifi(1), wwan(1).

Project hoempage:

Battery care:

Author

(c) 2025 Thomas Koch <linrunner at gmx.net>

Referenced By

bluetooth(1), nfc(1), run-on-ac(1), run-on-bat(1), tlp-rdw(8), tlp_selinux(8), tlp.service(8), tlp-stat(8), wifi(1), wwan(1).

2025-02-04 TLP 1.8.0 Power Management