Battery draining faster after today's update on S25 Ultra
Hello,
Not sure if I'm just being paranoid here, but something feels off with my S25 Ultra and I wanted to check if anyone else is in the same boat.
So about 10 days ago, I installed the One UI 8.5 update. Everything was running pretty smoothly after that, no complaints really.
But this morning I woke up to another update notification. This one was way smaller, around 600MB, and it was also labeled as an 8.5 update. Kinda confused me since I thought I was already on 8.5, but I figured it was probably a patch or something so I went ahead and installed it.
Now here's the thing, ever since installing that smaller update today, my battery seems to be draining noticeably faster than before. I haven't changed my usage pattern, same apps, same brightness, same everything. But the percentage is just dropping quicker than usual.
A few questions for the community:
- Did anyone else get this ~600MB update today on top of the original 8.5?
- Are you experiencing similar battery drain after installing it?
- Any tips on what I should do? Should I just wait it out or is there something I can actively do to fix this?
TIA
Posted May 28, 2026, 10:37 AM UTC