XA2 Ultra high battery drainage

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 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
or is my phone dying?

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


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.

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

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

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

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.

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

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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?


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

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.