Check this out. After fully charging from this morning?
[chris@f28h ~]$ upower -i /org/freedesktop/UPower/devices/battery_BAT1
native-path: BAT1
vendor: Hewlett-Packard
model: PABAS0241231
serial: 41167
power supply: yes
updated: Thu 17 May 2018 04:59:54 PM MDT (14 seconds ago)
has history: yes
has statistics: yes
battery
present: yes
rechargeable: yes
state: fully-charged
warning-level: none
energy: 29.1522 Wh
energy-empty: 0 Wh
energy-full: 29.1522 Wh
energy-full-design: 38.115 Wh
energy-rate: 0 W
voltage: 8.671 V
percentage: 100%
capacity: 76.4848%
technology: lithium-ion
icon-name: 'battery-full-charged-symbolic'
[chris@f28h ~]$
How does capacity go from 82.68% this morning to 76.48% this
afternoon? This laptop is ~18 months old.
[root@f28h ~]# cat /sys/class/power_supply/BAT1/cycle_count
0
That's obviously bogus. I'd say 75% of the time I'm working on power,
the other 25% or less of the time it's running on battery. It gets
battery usage once a week or so.
Chris Murphy