← Back to all guides

Apple iPhone • Power • 10 minutes

Battery runs down too fast — Apple iPhone

Safety firstGet help if the iPhone swells, overheats while sitting still, or the battery percentage suddenly drops by large amounts.
Use the Battery page to see what changed before assuming the battery is worn out.

  1. Check for an iOS update

    Open Settings > General > Software Update. If an update is available, tap Update Now and follow the on-screen steps.

  2. Find the biggest battery user

    Open Settings > Battery. Scroll to Battery Usage by App, then tap Show Activity to see screen and background use.

  3. Check battery health

    Open Settings > Battery > Battery Health & Charging. Read Maximum Capacity and any service message.

  4. Reduce screen use

    Open Settings > Display & Brightness. Lower Brightness, then tap Auto-Lock and choose 30 Seconds or 1 Minute.

  5. Use Low Power Mode when needed

    Open Settings > Battery and turn on Low Power Mode.

← Back to all guides