I shifted to ubuntu 20.04 from windows 8 . Now I have some problems with my battery.
When it is around 20% it immediately drops to 5-6% and then shut down
I charged it to 100% but as soon as I remove the plug it goes to 91-92%
I had tried power-calibrate -R -r 20 -d 5 -s 21 -n 0 -p but nothing changed.
