Acer Laptop Battery Control Driver Looks Toward The Upstream Linux Kernel

For those with Acer laptops running Linux on GitHub there has been an out-of-tree driver providing an experimental "acer-wmi-battery" kernel module to allow controlling battery-related features. Now a cleaned-up version of that driver is working on getting into the mainline Linux kernel.

The acer-wmi-battery driver the past two years has lived on GitHub as an out-of-tree, experimental driver for battery health controls. The functionality aims to match what is available in the Acer Care Center under Microsoft Windows. With this driver you can limit the battery charging to 80% to help preserve the battery's capacity. There is also a battery calibration mode as a controlled charge-discharge cycle to improve the battery capacity estimations.