[TRACKING] Battery flipping between charging and discharging / Draws from battery even on AC

Framework Laptop 13 Linux
23

I just received my Framework laptop last week and immediately noticed that the battery never gets to the fully charged state. It’s always either “charging” or “discharging”. I’m on BIOS 3.04 and running Fedora 37.

This occurs no matter what value the battery charging threshold is set to. Testing with battery threshold at 100, upower reports the following when fully-charged and plugged in:

$ upower -i /org/freedesktop/UPower/devices/battery_BAT1
  native-path:          BAT1
  vendor:               NVT
  model:                Framewo
  serial:               000F
  power supply:         yes
  updated:              Sun 19 Mar 2023 07:53:22 AM EDT (0 seconds ago)
  has history:          yes
  has statistics:       yes
  battery
    present:             yes
    rechargeable:        yes
    state:               discharging
    warning-level:       none
    energy:              54.593 Wh
    energy-empty:        0 Wh
    energy-full:         54.593 Wh
    energy-full-design:  55.0088 Wh
    energy-rate:         3.542 W
    voltage:             17.608 V
    charge-cycles:       1
    time to empty:       15.4 hours
    percentage:          100%
    capacity:            99.2441%
    technology:          lithium-ion
    icon-name:          'battery-full-symbolic'
  History (rate):
    1679226802	3.542	discharging
    1679226772	3.573	discharging
    1679226742	3.634	discharging
    1679226712	3.696	discharging

Note the state is “discharging”, when it should be “fully-charged”. In other words, from the perspective of sysfs, there is no condition in which /sys/class/power_supply/BAT1/status will report “Full”.

Is this a limitation of the embedded controller or am I dealing with a hardware issue?

Possibly-related threads:

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