Upower reports incorrect charge level -- ACPI reports different (lower and more plausible) status
Doing a cursory exploration into why my system (Xubuntu 20.04) often misses the "critical battery level" moment, and is unexpectedly cut-off (I'm guessing by CPU low-voltage threshold).
Experimenting with upower
and acpi
commands in the terminal reveals that upower continues to report 65% battery while acpi tracks consistently down to 35% over time. After plugging in the charger, upower detects the state change, and immediately updates the charge estimate to 35%.
Any guidance??