Why is my iPhone battery draining fast?
Fast drain can be caused by a worn battery, but apps, settings or a recent update can drain a healthy battery too. Check Battery Health and battery usage in Settings first; a technician can test the battery to confirm whether replacement will help.
- Possible causes
- A worn battery with reduced capacity
- Background apps, location services or a recent iOS update
- Less often, a component drawing power it shouldn't
- Likely next step
- Review Settings > Battery for health and usage. If health is low or drain continues, bring it in for battery testing.
- When diagnostics are needed
- Diagnostics apply if the phone also gets hot, restarts, or drains while powered off.
