After updating to One UI 7, many Galaxy S23, S24 Ultra, and Z Fold 6 s report their phones draining 20–30 percent faster each day. If your phone’s battery life has nosedived since the update, you’re not alone. Here’s what’s happening and we will also be sharing some fixes to stop One UI 7 extreme battery drain.

Why One UI 7 is draining your battery

Several factors contribute to the surge in power use:

  • Post-update optimization tasks run continuously as the OS rebuilds indexes and recalibrates services, sometimes for more than a week
  • Samsung has added many richer animations and AI widgets demand more U/GPU cycles, raising power draw even at idle.
  • Unoptimised third-party apps may hold wakelocks or run excessive background syncs under Android 15, spiking battery use.
  • Persistent system processes in Device Health Services or Samsung’s device-care routines can trigger extra wake events and sensor checks.

How to fix One UI 7 battery drain (Some possible fixes)

1. Install Samsung’s June 2025 One UI 7 Patch

Samsung has rolled out and will be rolling out a critical update in early June 2025 targeting known battery-draining bugs. s (Galaxy S24 series got it as 2nd May security update) who applied it report up to 20 percent fewer idle wake events and improved overnight standby.

  1. Open Settings > Software update > and install.
  2. Confirm you have the June 2025 One UI 7 patch, then reboot.

2. Clear the Cache Partition

Eliminating residual files from the upgrade often fixes lingering glitches:

  1. Power off the phone.
  2. Hold Volume Up + Power to enter Recovery Mode.
  3. Select Wipe cache partition, confirm, then reboot.
  4. Reddit s note cache wipes reduce standby drain by roughly 10–15 percent after One UI 7

3. Optimize Device Care and Performance Profiles

Samsung’s built-in tools can halt redundant processes:

  • Go to Settings, then look for Device Care Tap Optimize now. This cleans up your phone’s RAM and stops apps that aren’t being used.
  • Find Performance profile and choose Light. This will give better power efficiency.
  • Turn on Power Saving Mode via Settings > Battery. This disables high-drain features like 120Hz refresh rate, background location, and Always On Display (AOD).

4. Reset Battery Statistics

Clearing historical battery data helps the system relearn actual usage patterns:

  1. Open the Phone app and dial *#9900#.
  2. Tap Battery stats reset to clear records.
  3. Reboot and monitor new battery graphs in Settings > Battery.

5. Update All Apps and Disable Auto-Sync

Outdated or mis-behaving apps can cause spikes in background activity:

  • Go to the Play Store and Galaxy Store to install all pending updates.
  • In Settings > s and backup > Auto sync, turn off sync for non-essential apps like social media or news.

6. Calibrate Your Battery Meter

If drain persists after two weeks:

  1. Let the battery reach 0 percent and power off.
  2. Charge to 100 percent while still off.
  3. Power on, then repeat the cycle once more.
    • This can correct meter misreadings and align software estimates with real capacity..

7. Factory Reset (Last Resort)

  • Factory reset via Settings > General Management > Reset > Factory Data Reset clears deep conflicts but requires full re-setup.
  • Wait 7–14 days post-reset or update for the OS to stabilise background tasks and report persistent bugs in the Samsung app to prompt further patches.

Additional Tips for Sustained Battery Health

  • Disable unused radios (Bluetooth, NFC, GPS) when not being used.
  • Use Galaxy App Booster (APK mirror) to optimise select apps’ background behaviour.
  • Avoid weak-signal areas where phones boost transmit power, and switch to Wi-Fi calling if available.

By truing out these steps, you should likely get at least 20–30 percent of lost run time, restoring the all-day battery life flagship Galaxy devices are known for. Monitor your battery graphs in Settings > Battery, and repeat cache clears or stats resets as needed when rolling out future updates.

Hope your device is seeing good battery life now after following our guide. If so, let us know which steps you took in the comment section down below!

ABOUT AUTHOR -

Ananya Subramani

Ananya Subramani lives in Chennai, India. She has a B.Tech in Computer Science from Anna University and works as a developer. She writes clear guides on web development and cloud computing.

Leave a Reply

Your email address will not be published. Required fields are marked *