battery drain issue s24 ultra

[Antookhes]

Hi Guys,

I've noticed a return of serious background battery drain issues that I initially experienced on One UI 6. After updating to One UI 7, everything worked perfectly for about a month — battery life improved, background CPU usage dropped, and sensors stayed quiet. But now, the same problems have returned.

Here’s what I’m seeing based on GSam Battery Monitor:

• CPU usage: 3h 36m total, with 3h 32m in background
• Device awake time: 1h 17m
• Wake locks: 7153
• Wakeups: 436
• Audio active: 1h 27m
• GPS usage: 4m
• Data usage: 23.22MB uploaded / 28.38MB downloaded

Some non-wakeup sensors remain active for long periods:

• Step Counter: 13h 31m
• Pressure Sensor (lps22df): 3h 30m
• Light Sensor (STK33F11): 3h 5m
• Auto-Rotate: 1h 41m
• Magnetometer (AK09918): 1h 47m

Major wake locks are triggered constantly by:

• AudioIn (33.6m), AudioMix (33.4m), ImsService (3.7m),
• SystemJobService jobs from com.samsung.android.lool and diagmonagent
• Prevent Sleep by AssistantDelay, BiometricUI, NetworkStats, AnyMotionDetector, and many others

In addition, nearly all CPU time was consumed in the background, suggesting constant activity by system-level components. Many of these wake locks are tied to UID 1000 (Android system), meaning it's not user apps but the core system that's responsible. These services can't be disabled manually and seem to run regardless of user interaction.

At this point, the excessive system-level background activity is clearly impacting battery life and device performance. I've already tried limiting background processes and disabling unnecessary apps, but it doesn't help because most of the drain comes from built-in services.

I’m sharing this hoping that someone from Samsung or the community can offer a fix, workaround, or at least acknowledge this as a known issue. I'd really like to stay with Samsung, but reliability and long-term performance are essential — especially on a flagship device.

Please let me know if this is being addressed or if there's anything else I can do to troubleshoot or fix it.

Thank you and have a nice day,

[Slothtamerv2]

Hi, i also have the battery issue its not as bad i can go the day without issue. Have you got good guardians on your phone from the samsung store? I use that and do a app boost weekly to improve performance and check battery, storage etc.

[Tourbillon De La Vie]

https://eu.community.samsung.com/t5/galaxy-s25-series/battery-dying-ridiculously-fast-after-new-upda...

[GoanGeek]

Hi.

It seems to be a Google issue.

I have had a bit of battery drop myself after the couple of updates and seem to be Google Pixels are suffering the same fate.

I guess instead of fiddling with your settings just ride the wave and keep updating apps as and when updates are available and hopefully we should see a fix come along .

[Jammy97]

Does Good Guardians actually work?

[Slothtamerv2]

I say yes it does i saw the difference from one ui 6-7 like you did, I would give it a go for a month weekly optimisations and see how it goes

[Jammy97]

So you think yes? Are there any other apps that you would recommend? Thanks.

[Slothtamerv2]

You can use cpu z to keep a watch on your phones hardware and software that's up to you but hopefully it helps you.

[Jammy97]

GPU Z is what it's called? And does it work? Thanks.

[Slothtamerv2]

That's on the play store. Yes I check now and then to see what the cpu is doing if I have official software etc.