I think I have the same problem on: Linux teefour 4.11.7-1-ARCH #1 SMP PREEMPT Sat Jun 24 09:07:09 CEST 2017 x86_64 GNU/Linux This is my https://s.natalian.org/2017-07-04/99-lowbat.rules that lives at /etc/udev/rules.d/99-lowbat.rules