Comment 17 for bug 1824886

https://bugs.launchpad.net/ubuntu/+source/upower/+bug/629258
https://bugs.launchpad.net/ubuntu/+source/indicator-power/+bug/1640544
https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/572970
https://bugs.launchpad.net/ubuntu/+source/indicator-power/+bug/1231550
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/733866
https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/455786
https://bugs.launchpad.net/ubuntu/+source/indicator-power/+bug/1451195
https://bugs.launchpad.net/ubuntu/+source/upower/+bug/994745
https://ubuntuforums.org/showthread.php?t=1627848
https://ubuntuforums.org/showthread.php?t=1601974
https://ubuntuforums.org/showthread.php?t=937255
https://ubuntuforums.org/showthread.php?t=1692765
https://ubuntuforums.org/showthread.php?t=1354867
https://ubuntuforums.org/showthread.php?t=1566962
https://ubuntuforums.org/archive/index.php/t-1035411.html
https://ubuntuforums.org/showthread.php?t=1627350
https://ubuntuforums.org/showthread.php?t=2415233
https://ubuntuforums.org/showthread.php?t=1634535
https://askubuntu.com/questions/894023/battery-is-stuck-on-estimating
https://askubuntu.com/questions/1062427/18-04-battery-charge-indicator-doesnt-reflect-state-of-charge
https://askubuntu.com/questions/76256/lubuntu-battery-monitor-always-says-100
https://askubuntu.com/questions/543508/indicator-power-stuck-on-the-first-value-after-logining
https://askubuntu.com/questions/587063/battery-indicator-always-says-using-battery-power-even-when-plugged-in-asus
https://askubuntu.com/questions/7205/battery-indicator-is-stuck-on-estimating
https://askubuntu.com/questions/922139/battery-shows-always-charging-even-its-not-plugged-in
https://askubuntu.com/questions/894023/battery-is-stuck-on-estimating/989607#989607
https://forums.linuxmint.com/viewtopic.php?t=251095
https://forums.linuxmint.com/viewtopic.php?t=65667
https://github.com/linuxmint/Cinnamon/issues/4925
https://arstechnica.com/civis/viewtopic.php?f=16&t=432885
https://forum.mxlinux.org/viewtopic.php?t=48113
https://bbs.archlinux.org/viewtopic.php?id=167767
https://romaco.ca/blog/2011/01/28/fix-that-annoying-laptop-battery-estimating-in-ubuntu/
https://www.reddit.com/r/archlinux/comments/5p7622/gnome_battery_indicator_is_stuck_on_estimating/
https://www.reddit.com/r/cloudready/comments/a3tnw5/battery_indicator_stuck_at_100/

Perhaps our case is somewhat similar to this:
https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/460631
https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/437745

In Russian:
https://spider.bsyteam.net/1281 - One guy managed to solve the problem, but this solution did not suit me and led to OS boot errors.
https://forum.ubuntu.ru/index.php?topic=222228.0
https://forum.ubuntu.ru/index.php?topic=218064.0
https://www.linux.org.ru/forum/linux-hardware/6950399
https://forum.ubuntu.ru/index.php?topic=79413.0
http://www.cyberforum.ru/ubuntu-linux/thread241690.html
https://unixforum.org/viewtopic.php?t=106380
https://forum.ubuntu.ru/index.php?topic=243173.0
https://ubuntugeeks.com/questions/63147/battery-indicator-always-says-using-battery-power-even-when-plugged-in-asus