Samsung Galaxy S21 Battery Drain (Android 14)
4.5
Battery life decreased significantly after the Android 14 update.
Symptoms
- Fast standby drain
- Device feels warm
- High system usage
Possible Causes
- Unoptimized apps
- 120Hz refresh rate
- Sync issues
- Location services
Step-by-Step Fix
1
Check Usage
Go to Settings > Battery to identify power-hungry apps.
2
Limit Background Apps
Put unused apps to sleep in Background usage limits.
3
Wipe Cache
Boot to recovery and select Wipe cache partition.
When to See a Technician
If health is below 80%, consider a replacement.
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