Graph of the battery charge level

[guru]

I did what you (@dos) adviced and after charging to full (red LED off and 100%) upower-d shows:

Device: /org/freedesktop/UPower/devices/line_power_tps6598x_source_psy_0_003f
  native-path:          tps6598x-source-psy-0-003f
  power supply:         yes
  updated:              Wed 25 Jan 2023 02:04:16 PM CET (63 seconds ago)
  has history:          no
  has statistics:       no
  line-power
    warning-level:       none
    online:              no
    icon-name:          'ac-adapter-symbolic'

Device: /org/freedesktop/UPower/devices/battery_max170xx_battery
  native-path:          max170xx_battery
  power supply:         yes
  updated:              Wed 25 Jan 2023 02:04:25 PM CET (54 seconds ago)
  has history:          yes
  has statistics:       yes
  battery
    present:             yes
    rechargeable:        yes
    state:               discharging
    warning-level:       none
    energy:              11.3431 Wh
    energy-empty:        0 Wh
    energy-full:         13.8572 Wh
    energy-full-design:  13.8572 Wh
    energy-rate:         3.04983 W
    voltage:             3.98547 V
    time to empty:       3.7 hours
    percentage:          99%
    temperature:         37.7 degrees C
    capacity:            100%
    technology:          lithium-ion
    icon-name:          'battery-full-symbolic'
  History (charge):
    1674651865	99.000	discharging
  History (rate):
    1674651865	3.050	discharging
    1674651865	3.078	discharging
    1674651856	2.168	discharging
    1674651856	2.617	discharging
    1674651856	0.087	discharging

Device: /org/freedesktop/UPower/devices/line_power_bq25890_charger
  native-path:          bq25890-charger
  power supply:         yes
  updated:              Wed 25 Jan 2023 02:04:16 PM CET (63 seconds ago)
  has history:          no
  has statistics:       no
  line-power
    warning-level:       none
    online:              no
    icon-name:          'ac-adapter-symbolic'

Device: /org/freedesktop/UPower/devices/DisplayDevice
  power supply:         yes
  updated:              Wed 25 Jan 2023 02:04:25 PM CET (54 seconds ago)
  has history:          no
  has statistics:       no
  battery
    present:             yes
    state:               discharging
    warning-level:       none
    energy:              11.3431 Wh
    energy-full:         13.8572 Wh
    energy-rate:         3.04983 W
    time to empty:       3.7 hours
    percentage:          99%
    icon-name:          'battery-full-symbolic'

Daemon:
  daemon-version:  0.99.11
  on-battery:      yes
  lid-is-closed:   no
  lid-is-present:  no
  critical-action: PowerOff

[Quarnero]

@guru

    energy-full:         13.8572 Wh
    energy-full-design:  13.8572 Wh
    energy-rate:         3.04983 W
    voltage:             3.98547 V
    time to empty:       3.7 hours
    percentage:          99%

Voltage there is still too low (way below 4.20V, meaning values are still artificial). Just while energy-full value should be slightly higher than energy-full-design value (design value will not and should not be changed). Therefore, when red LED light off, try to reboot into 100% battery capacity, in order to get calibrated values there (and do not have to remove Librem 5 battery again).

In short, I think that your upower -d output, here posted one, still isn’t perfect, yet way better as what you have had there until now.

[guru]

This is how it discharges after the first full charge after @dos’ procedure:

and after an additional full charge over night it shows now with upower -d

Device: /org/freedesktop/UPower/devices/battery_max170xx_battery
  native-path:          max170xx_battery
  power supply:         yes
  updated:              Thu 26 Jan 2023 07:13:04 AM CET (118 seconds ago)
  has history:          yes
  has statistics:       yes
  battery
    present:             yes
    rechargeable:        yes
    state:               discharging
    warning-level:       none
    energy:              10.1356 Wh
    energy-empty:        0 Wh
    energy-full:         11.353 Wh
    energy-full-design:  13.8572 Wh
    energy-rate:         1.08569 W
    voltage:             4.00281 V
    time to empty:       9.3 hours
    percentage:          90%
    temperature:         32.3 degrees C
    capacity:            81.9286%

[Quarnero]

@guru

an additional full charge over night it shows now with upower -d

As your battery looks (not that I’m some expert) like slightly degraded there, please ensure that some power supply/bank is still connected (you’ll be there where you want to be when state outputs fully-charged, as my last two screenshots above show) and:

@Quarnero

Now wait until red LED light turns off before booting your Librem 5 into PureOS GUI again.

P.S. I like your progress (but would like to see BPP-L503 battery voltage measurement closer to 4.20) very much.

[guru]

@Quarnero

As your battery looks (not that I’m some expert) like slightly degraded there, please ensure that some power supply/bank is still connected (you’ll be there where you want to be when state outputs fully-charged , as my last two screenshots above show) and:

This means, I should charge the L5 to full while it is switched off. Right?
The exact procedure to follow in the sense of

1. do this
2. now do this
3. and now this
4. …

is not very clear to me.

[Quarnero]

BQ25890 works by itself during reflash process, under Jumpdrive … either when connected to some computer USB port and where BPP-L503 battery cell actually discharges itself (at slower rate, yet discharging while needs to add above 0.47A necessary power that i.MX8 MQ and its periphery are requesting in order to successfully complete the job/task):

@johan-bjareholt

After some more investigation it seems like the dock is providing less power than the phone is consuming, so it’s technically true that the battery is discharging (at the same time as it is being charged).

or even when actually charging this Li-ion battery as connected to adequate power supply/bank/dock, isn’t it?

And yes, I already gave + to @dos post here for some reason:

@dos

There are two things at play there - gauge calibration and its configuration.

This very kind advice applies here as well (providing correct answer), I’m quite sure:

@nicole.faerber

The charging after that in powered-off mode is just to avoid power budget interference with the charging, charging should then take place form 0% to 100% in one sitting and with the full charge current (which could get reduced otherwise if e.g. an OS is running).

[dos]

If you use the provided PD charger or an equivalent which is able to supply 3A, I wouldn’t bother with turning the phone off during charging since it’s unlikely that you be hitting that limit, at least as long as you won’t let it pause the charging due to high temperature.

Well, unless you do something like docking it to an external screen to play an online 3D game that uses a camera using cellular connection in a place with poor reception, then the charging will likely slow down due to power draw:)

[Quarnero]

I thought that this thread applies to the recorded value/output or rather artificial number (and actual main issue/behavior of inserted battery here / of some wrong charging setups on some phones / when those run only on its battery) when energy-full at 26.3287 Wh (like my screenshot shows) or even at:

@tomoqv

energy-full: 21,8746 Wh

[dos]

Yes, and I think my post here is already pretty much complete when it comes to that:

Graph of the battery charge level

There are two things at play there - gauge calibration and its configuration. The kernel is supposed to automatically configure the gauge with correct values for a given hardware revision if it’s uninitialized, but there are cases where you may end up with incorrect ones being used (for example, if you use boot current versions of Jumpdrive as the first thing after taking the battery out and don’t take it out ever again). To easily check whether your gauge configuration is right: purism@everg…

Something isn’t clear there yet?

(btw. I added “during charging” to my previous post in case it wasn’t clear what I meant)

[guru]

@dos

Something isn’t clear there yet?

Your post was very clear and I did this as you adviced.

[janvlug]

@dos

to apply this patch to get better data resolution: https://gitlab.gnome.org/GNOME/gnome-power-manager/-/merge_requests/17

Could we get a patched version in the Purism Librem 5 repo?

[irvinewade]

@janvlug

repo

I guess merge requests eventually merge …

[guru]

What does the value for capacity mean:

upower -d
...
    state:               discharging
    warning-level:       none
    energy:              11.5609 Wh
    energy-empty:        0 Wh
    energy-full:         12.7091 Wh
    energy-full-design:  13.8572 Wh
    energy-rate:         1.4414 W
    voltage:             3.94406 V
    time to empty:       8.0 hours
    percentage:          90%
    temperature:         26.7 degrees C
    capacity:            89.5%
    ^^^^^^^^
    technology:          lithium-ion

[dos]

Difference between energy-full and energy-full-design. Basically what the gauge thinks is the actual battery capacity in relation to stated design capacity. energy-full gets updated after every full charge cycle.

[guru]

Hmmmm,

$ bc
>>> scale=5
>>> 12.7091*100/13.8572
91.71477

and how could I increase this percentage?

[dos]

@guru

and how could I increase this percentage?

The arrow of time usually points in a single direction

[guru]

I’ve read about astrophysicans saying that time goes also backwarts.

I used the original L5 power supply and a special trick which improved capacity already from 89.5% to 92.5%.

[raenrfm]

In this reference frame…lol. Time doesn’t move for photons, there’s a real brain tickler.

[dos]

@guru

I used the original L5 power supply and a special trick which improved capacity already from 89.5% to 92.5%.

As I said above, that value is determined by gauge’s heuristics and is updated at the end of charging cycle, so if your gauge is still calibrating it will likely fluctuate a bit. That said, this is simply a not-100%-accurate representation of the actual physical property, and that physical property tends to only go down over time with battery age. Seems like your gauge simply took a pessimistic stance at first ;]

[guru]

When the L5 is fully charged from the original power supply and the red LED goes off, I power it down by SSH with sudo systemctl poweroff and without disconnecting the power supply from the L5. As you can see in the photo below, it keeps charging with 5.231V and 0.087A which is nearly 0.5W. A reboot after half hour shows now:

    energy-full:         12.9961 Wh
    energy-full-design:  13.8572 Wh
    energy-rate:         0.705233 W
    voltage:             4.20969 V
    percentage:          100%
    temperature:         31.2 degrees C
    capacity:            93.7143%