Today, something really worrying happened: My Fairphone 3 lost 70% of battery within one hour due to mobile connection (but not cellular data). I’ve already opened a Gitlab issue.
Has anyone else noticed something like that? Can I do anything about it?
For reference, here’s the content of said Gitlab issue:
/e/ version: 1.6-s-20221201239247-dev-FP3
Device model(s): Fairphone 3
Device rooted: noI just picked my phone up after a quite while (a few hours) of not using it, and noticed it wasn’t turned on anymore (I hadn’t shut it down). After re-booting, I noticed EXTREME battery drain.
At 2:37 the battery was at 90% (ninety).
At 2:58 it was at 58% (fifty-eight).
That means, within 19 minutes, the battery lost 32%, which is insane. That means, it loses ca. 1.7% every single minute!
I did not do anything unusual, only one or two apps were running in the foreground, nothing was being downloaded, the device was inside at room temperature (ca. 20°C = 68°F).
According to the battery settings, the mobile network connection is responsible for draining nearly 70% of the battery. Though, the cellular data connection (a.k.a. 4G) has been disabled since the re-boot, and the device was only been connected to my WiFi.
It’s currently 3:08, and my FP3 is at 48%. According to the system settings, the battery will last only 6h 48min. I see myself forced to auto-enable extreme battery saving mode at 75% from now on.
By the way: The “battery manager” has been turned on since sideloading Android 12.
It’s currently 3:41, and the battery is at 20%, meaning it has lost 70% within one hour. According to the system settings, it will last only 2h 25min anymore (despite having enabled extreme battery saving mode at 48%).
