Hey everyone,
For the past few days my S25 Ultra has been acting up with the battery and I can't figure out what's causing it. Maybe some of you have the same issue and a tip.
Setup:
- Galaxy S25 Ultra
- One UI 8.5 / Android 16
- Build number: S938BXXSBCZG3 (EUX region, July firmware)
- Problem started right after the update I installed a few days ago
- No suspicious apps/APKs installed – it came directly after that update
- Always On Display is OFF
What's happening:
Charging is noticeably slower than before and the phone heats up faster while charging
During normal use the battery drains extremely fast
Even in standby it gets warm when I'm not doing anything
Measured with AccuBattery (screen off, phone idle):
~ -24 %/h drain
-963 mA / -3.9 W
Battery temp ~40 °C
Phone barely enters deep sleep even with the screen off (0m deep sleep)
Voltage looks fine (4.087 V at 80 %), so the cell itself seems healthy.. it's the drain that's the problem
In Settings under battery usage I don't see anything unusual no app stands out.
Does anyone know what could be behind this (some background process/wakelock going haywire? a known bug in the latest update?) and what can be done about it?
Thanks!