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How to Save Power on iPhone?

Published in iPhone Battery Optimization 5 mins read

To significantly extend your iPhone's battery life, the most effective approach is to enable Low Power Mode and consistently optimize various settings related to display, apps, and connectivity.

Utilize Low Power Mode

Low Power Mode is a built-in iOS feature designed to reduce the amount of power your iPhone uses when the battery gets low. When activated, your iPhone will last longer before needing a charge, as it temporarily reduces or disables certain power-consuming features.

Some features that might take longer to update or complete, or are temporarily restricted when Low Power Mode is on, include:

  • Email fetch
  • Background app refresh
  • Automatic downloads
  • Some visual effects
  • iCloud Photos syncing
  • 5G (except for video streaming and large downloads)

How to Enable Low Power Mode:

  1. Via Settings:
    • Go to Settings.
    • Tap Battery.
    • Toggle Low Power Mode on. Your battery icon in the status bar will turn yellow.
  2. Via Control Center (Recommended for Quick Access):
    • First, add Low Power Mode to your Control Center:
      • Go to Settings.
      • Tap Control Center.
      • Tap Customize Controls (or More Controls on newer iOS versions).
      • Select the green plus icon next to Low Power Mode to add it.
    • Once added, you can quickly enable or disable it by swiping down from the top-right corner (or up from the bottom for older iPhones with a Home button) to open Control Center, then tapping the battery icon.

Optimize Display Settings

Your screen is one of the biggest power consumers. Adjusting display settings can yield significant battery savings.

Reduce Screen Brightness

  • Manually: Swipe down from the top-right corner to access Control Center and drag the brightness slider down.
  • Enable Auto-Brightness: Your iPhone can automatically adjust brightness based on ambient light. Go to Settings > Accessibility > Display & Text Size, then scroll down and toggle Auto-Brightness on.

Shorten Auto-Lock Time

The shorter your screen stays on when idle, the less power it consumes.

  • Go to Settings > Display & Brightness > Auto-Lock.
  • Select a shorter duration like 30 Seconds or 1 Minute.

Enable Dark Mode

For iPhones with OLED displays (iPhone X and newer, excluding XR/SE), Dark Mode uses less power because black pixels are turned off completely.

  • Go to Settings > Display & Brightness.
  • Select Dark under the Appearance section. You can also set a schedule for it.

Manage App & Connectivity Settings

Controlling how apps and network connections behave in the background is crucial for power conservation.

Limit Background App Refresh

Apps refreshing in the background consume battery, even when you're not actively using them.

  • Go to Settings > General > Background App Refresh.
  • You can turn it off entirely, or selectively disable it for apps you don't need to update constantly in the background.

Adjust Location Services

Many apps use your location, which drains power.

  • Go to Settings > Privacy & Security > Location Services.
  • Review the list of apps and set their location access to While Using the App or Never for less essential services.
  • Scroll down to System Services and disable any unnecessary services like Location-Based Alerts or significant locations.

Optimize Mail Fetch Settings

Push email delivers messages instantly, but it can be a battery drain.

  • Go to Settings > Mail > Accounts > Fetch New Data.
  • Change Push to Fetch and set a manual fetch interval (e.g., Every 30 Minutes or Manually) for non-critical accounts.

Control Notifications

Frequent notifications wake up your screen and keep your iPhone active.

  • Go to Settings > Notifications.
  • Disable notifications for apps that send numerous or unnecessary alerts.

Use Wi-Fi Over Cellular Data

When available, connect to Wi-Fi. It generally consumes less power than cellular data, especially if cellular signal is weak.

  • Ensure Wi-Fi is on when you're in a Wi-Fi-enabled area.

Advanced Power-Saving Techniques

For even greater efficiency, consider these additional tips.

Check Battery Health

An aging battery will hold less charge.

  • Go to Settings > Battery > Battery Health & Charging.
  • Check Maximum Capacity. If it's significantly below 80%, your battery might need service.

Reduce Motion & Transparency

These visual effects, while aesthetically pleasing, consume GPU power.

  • Go to Settings > Accessibility > Motion. Turn on Reduce Motion.
  • Go to Settings > Accessibility > Display & Text Size. Turn on Reduce Transparency.

Disable Unnecessary Vibrations & Haptics

Haptic feedback and vibrations consume power.

  • Go to Settings > Sounds & Haptics.
  • Disable Vibrate on Ring or System Haptics if you don't need them.

Manage Widgets

Widgets on your Home Screen or Today View constantly update information, consuming battery.

  • Swipe right on your Home Screen to access the Today View.
  • Scroll to the bottom and tap Edit. Remove any widgets you don't frequently use.
  • Remove widgets from your Home Screen by long-pressing them and selecting Remove Widget.

Keep iOS Updated

Apple frequently releases iOS updates that include bug fixes and battery optimizations. Always ensure your iPhone is running the latest stable version.

By implementing these strategies, you can significantly extend your iPhone's battery life throughout your day.

Category Action Benefit
Modes Enable Low Power Mode Comprehensive battery saving
Display Reduce Screen Brightness Less screen power draw
Display Shorten Auto-Lock Prevents screen staying on unnecessarily
Apps Limit Background App Refresh Prevents background activity
Connectivity Optimize Location Services Reduces GPS usage
Connectivity Use Wi-Fi over Cellular More efficient data transfer
System Keep iOS Updated Incorporates battery optimizations