Hi,

I have seen a couple of posts regarding battery drain but the typical response to those seems to be along the lines of "Let the phone run for a week or two and the OS will balance out its resource use". I have been running an install of Graphene for over a month.

I have also ran this OS last year and had zero battery problems, but I had to migrate to Calyx and stockOS for a college project.

Returning here, my battery drain is extreme, but Calyx faced similar problems. WiFi, Mobile Data (4G), Phone idle, sometimes System (CPU) are all responsible. Even if I don't use the phone, and wifi/data are disabled - The battery will not outlast 24 hours.

This drain seems to stop when I switch the device into Airplane mode. This drain does not occur on stockOS, and GOS installed/uninstalled makes no difference. Even after fresh installs, connectivity would drain resources.

The screenshots attached are from a day with approx 1hr screen-on time.
https://imgur.com/a/NZ13qvE

Does anyone else face this issue? Is there an app allowing me to see and measure when/how much data the phonesends somewhere? Any advice?

Thank you.

----- App configuration ------ (This problem still exists even if i didnt install extra apps)

FOSS stuff: FairEmail, NewPipe, Signal, Music Players, etc.
Proprietary Apps: WhatsApp, Gboard (no network), Google Photos (no network).

    kamilos

    So you're saying, with wifi/data disabled the battery drain problem persists, yet with airplane more activated the problem goes away?

    Have you tested a completely fresh install of GrapheneOS with no extra apps, to see how its battery performance is?

    How strong is your wifi signal? Are you far from the router? I'm betting something is up with your wifi signal being weak. To compare Pixel 7 to your P6P - under Settings -> Battery -> Battery usage I can see that it's been 10 hours since my last full charge, I've used Wifi for 8 hours 45 min of that 10 hours, and wifi has used 8% of my battery.

      kamilos

      Yeah, I just looked at your screenshot again - your wifi meter at the top is clearly showing a low signal. While that meter isn't technically accurate it's a good indication that the wireless network you're connected to is not very strong in your phone's location.

      Also, your screenshot doesn't show how fully you last charged your phone. Is the wifi usage 21% of a 50% charge? Or of a 100% charge? If it's 100% then you have other problems besides wifi signal.

          spiral

          Couldn't reply earlier due to travel.

          It does not matter if the Signal is strong or weak. Same result. Even if I toggle data/WiFi off, the battery will still drain (bit less) until I toggle Airplane Mode. As mentioned in OP, I did not have this drain last year before switching to other OS's.

          The screenshot was showing the battery depleting from 100%.

              kamilos

              The screenshot was showing the battery depleting from 100%.

              Gotcha. So, what else was shown to be depleting the battery? Something must be missing from that screenshot. The battery meter on your phone in that screenshot looks like it's very depleted but the screenshot shows Wifi as draining only 21% of the 100% charge.

              Are you saying this also happens on your P6 on a fresh GOS install with NO other apps installed?

                  spiral

                  The screenshot displays all services (I made sure before posting). Maybe the phone was rebooted or something (I don't remember), but it was charged to 100% in the morning, and was at 20% at 11pm with 1hr screen-on time. I could make another test tomorrow or Sunday.

                  And yes, this even happens on a fresh GOS install with ZERO additional apps installed.

                  Note: I restart my device when writing this, and I noticed that before the reboot, the System CPU 'service' was respnsible for 7% of battery use. But opon the device restart, this 'service' and its battery use is no longer reported in the battery stats at all. I am not too sure what is going on here, but it seems the info reported may not be too accurate.

                  Note 2: Same issue was evident in Calyx and Lineage, which would indicate a hardware problem, but I am PRETTY sure stock OS worked just fine for me in May after Google issued a server-side patch (battery issue was common problem on stockOS in early May). I might flash it next week and triple-check.

                      kamilos

                      Hmm, I'm out of ideas, then. It definitely sounds like hardware failure but tough to say. I wish I could be of more help. Kindly report back if you discover what the problem is, I'd love to know.