XA2 Ultra high battery drainage

[jeanpierrraubry]

on my XA2 Ultra
usual battery drainage used to be around 25% over 24 hours
i make a very moderate use of this phone
on the same usage with 4.5.0.18 drainage got up to around 50% over 24 hours
with many “Battery discharging rate” peaks of 15% for several minutes which hardly look related to any special usage

is this a “feature” of this new 4.5.0.18?
or is my phone dying?

may i expect a Jolla team expert answer on the subject?

thanks

[jollajo]

I never managed to get anywhere close to only 25% discharge a day on my XA2+. Actually my battery hardly lasts for a full day. The level drops around 10-15% over night, with AlienDalvik stopped, and mobile data set to 2G only.
Recently I got my battery replaced but battery lifetime didn’t increase significantly, so I assume it’s the SW.

[smatkovi]

I get the feeling that sfos 3 was faster and more efficient

[jeanpierrraubry]

@jollajo
i would understand better your answer if a knew what means SW

@atsmatkovi
i have 3.3 on a Fairphone 2 it is night and day compared to 4.5 on the XA2
Gps works, compass works, Browser works much faster + many other
in fact everything is better except some cosmetic

[jollajo]

@jeanpierrraubry

i would understand better your answer if a knew what means SW

If I knew, it may be operating system, any service running in the background, or other apps. I just wanted to make clear, that I don’t think recent high battery drainage is caused by hardware.

[Fuzzillogic]

Might be the same problems as others and I have with XA2:

[4.5.0.18] (still) battery drain on XA2

After receiving a call or sms, or when taking a screenshot, or just because of reasons, my XA2 still suffers increased battery drain due to some processes suddenly starting to us the CPU for no apparent reason. And from experience I can tell that even a few percent (according to top) CPU usage has noticeable impact on battery life. Some issues, regarding lipstick and voicecall-ui, have been reported before: Screenshot leads to lipstick high CPU and battery drain and [3.4.0.22] Voicecall-ui uses …

[mal]

There are some ways to debug what is causing high battery drain. One is to check what is causing wakeups from “/sys/kernel/debug/wakeup_sources” and another is checking output of “journalctl -b --no-pager” for messages related to suspend, especially if something is mentioned preventing suspend. Also is AppSupport running?

[jeanpierrraubry]

@mal
thanks for your answer
could you be a bit more explicit about “/sys/kernel/debug/wakeup_sources” and “journalctl -b --no-pager”
i am a layman and do not understand what you mean
and AppSupport is not running if this means Android AppSupport
in the time battery drainage returned to the usual less than 10% over the last 12 hours night without changing anything in the setup

[ohnonot]

Open a terminal and enter:

cat /sys/kernel/debug/wakeup_sources

devel-su journalctl -b --no-pager

The password needed for devel-su can be set by enabling developer mode in Settings.

PS: It’s much nicer to work in the terminal from the comfort of your computer.
Also, log viewer apps exist.