OnePlus Watch 3 Battery Drain Issues
If your OnePlus Watch 3 drains faster than expected, follow this guide to identify causes and restore normal battery life.
Expected Battery Life
| Mode | Duration |
|---|---|
| Smart Mode | 4-5 days (100 hours) |
| Power Saver | Up to 14 days |
| Heavy Use | 2-3 days |
If getting less than 2 days in Smart Mode, something is wrong.
Quick Checklist
Common battery drainers to check first:
- Always-On Display: Adds 10-15% daily drain
- GPS constantly active: Uses 8-10% per hour
- LTE enabled: Adds 15-20% daily drain
- High brightness: Set to 60-70% or auto
- Complex watch faces: Use simpler designs
Check Battery Usage
On Watch: Swipe down Battery icon View app consumption
On Phone: OnePlus Health Device Battery statistics
Common Fixes
1. Disable Always-On Display
Settings Display Always-On Display Off
2. End Stuck GPS Workouts Open workout app Swipe right End workout
3. Disable LTE When Not Needed
Settings Connectivity Mobile network Off
4. Reduce Brightness Swipe down Lower brightness to 60-70%
5. Remove Unused Apps Press and hold app Uninstall
Software Issues
Update Software:
Settings System System updates
Restart Watch: Hold crown button 10-15 seconds
Factory Reset (Last Resort):
Settings System Disconnect & reset
Optimal Settings
For balanced battery + features:
- AOD: Off or scheduled (7am-11pm)
- Brightness: Auto or 60-70%
- Heart Rate: Continuous (co-processor efficient)
- GPS: Only during workouts
- LTE: Off unless phone unavailable
Expected with these settings: 5-6 days
Normal High Drain Scenarios
GPS workouts (8-10% per hour), LTE usage, and new watch setup (first 2-3 days) normally cause higher drain.
See Also: How Long Does Battery Last|How to Charge|What is Dual-Engine Architecture