Skip to content

Fix Lenovo's Battery Power Management under Linux (T470s)

License

Notifications You must be signed in to change notification settings

dmusican/battery_swap_fix

 
 

Repository files navigation

Battery Swap Fix (Linux) for Lenovo T460s / Ubuntu 16.04

(forked from https://github.com/mickare/battery_swap_fix)

Scripts to automatically set charge_start_threshold to reasonable values, so the batteries are charged and switched correctly.

Background

There is a bug either in the Linux kernel or the lenovo power management, that when not charging, only one battery is used and never the extra battery.

When the first battery is empty the laptop can simply crash, since the Linux kernel thinks there is still more power, but some battery controller simply kills the power to protect the battery.

By enabling charge_start_threshold, by using a number greater than 0, the battery is correctly switched when that threshold is reached. But when the battery capacity is higher, then the battery won't charge.

This project tries to mitigate this dilema, by automatically setting the charge_start_threshold values accordingly to the current AC power status.

Installation

To install run sudo ./install.sh.

To uninstall run sudo ./uninstall.sh.

In both cases your system could need a restart, so udev can reload the event monitoring rules correctly.

Tested Devices:

  • Lenovo T460s

About

Fix Lenovo's Battery Power Management under Linux (T470s)

Resources

License

Stars

Watchers

Forks

Releases

No releases published

Packages

No packages published

Languages

  • Shell 100.0%