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thinkpad_battery_management [2019/05/12 15:12] (current)
hankwang created (parts are from the E490 page).
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|+||====== Thinkpad battery management ======|
|+||Most Thinkpad models since 2012 or so support management of the battery charging system via software. Most wear of Li-ion and Li-polymer batteries is due to charging at battery levels above 80%. (More reading: [[https://accubattery.zendesk.com/hc/en-us/articles/210224725-Charging-research-and-methodology|AccuBattery documentation]].) Batteries will last many more charging cycles if you charge only up to 80% rather than up to 100%.|
|+||TLP is a toolkit that can handle power saving, including support for Thinkpad-specific battery management. More info: [[https://linrunner.de/en/tlp/docs/tlp-linux-advanced-power-management.html|TLP website]].|
|+||The following steps worked on a Thinkpad E490 (2019 model) with Mint 19.1 (based on Ubuntu 18.04), with kernel 4.15.0-48.|
|+||apt install tlp git wget|
|+||unzip -d /tmp master.zip && cd /tmp/tpacpi-bat-master && ./install.pl && cd -|
|+||cp /tmp/tpacpi-bat-master/tpacpi-bat /usr/local/bin|
|+||tpacpi-bat -s start 1 75|
|+||tpacpi-bat -s stop 1 80|
|+||The two tpacpi-bat commands need to be executed at reboot; you can create /etc/rc.local (permission 755) for that purpose. |
|+||You can see the battery status (and other power management details) using ''tlp-stat''.|