The fastest ways to cut iPhone battery drain right now
Turn off background app refresh, lower your screen brightness, and switch to Low Power Mode. These three steps alone will cut your battery use by 20 to 40 percent depending on what you do with your phone. If your battery still drains fast after you make these changes, check which apps are using the most power — the Battery section in Settings shows you the breakdown by app.
Low Power Mode reduces performance slightly but extends battery life noticeably. Your phone will refresh email less often, pause automatic downloads, and reduce animation smoothness. Most people do not notice the difference in daily use. You can turn it on manually in Settings > Battery, or set it to turn on automatically when your battery hits 20 percent.
Background app refresh lets apps update their content even when you are not using them. Mail, weather, and news apps do this constantly. Turning it off means you will see fresher information only when you open the app, but your battery will last longer. Go to Settings > General > Background App Refresh and turn it off entirely, or turn it off for individual apps you do not need to update in the background.
Key Takeaways
- Low Power Mode, reduced screen brightness, and turning off background app refresh are the three changes that make the biggest difference in battery life.
- Your screen uses more power than any other component, so lowering brightness or using auto-brightness saves battery faster than any other single step.
- Check Settings > Battery to see which apps drain the most power, then decide whether to close them, uninstall them, or turn off their background activity.
- Location services, Bluetooth, and Wi-Fi searching all drain battery even when you are not actively using them — turn them off when you do not need them.
Screen brightness is your biggest battery drain
Your display uses 15 to 25 percent of your battery power on a typical day. Lowering brightness from maximum to 40 percent can add two to four hours to your battery life. The easiest way is to turn on auto-brightness, which adjusts your screen to match the light around you. Go to Settings > Accessibility > Display & Text Size and toggle on Auto-Brightness.
If you prefer to set brightness manually, swipe down from the top-right corner of your screen to open Control Center and drag the brightness slider down. You can also go to Settings > Display & Brightness and adjust it there. The lower you go, the longer your battery lasts — but you need to be able to see your screen, so find the balance that works for your eyes and your battery.
Location services, Bluetooth, and Wi-Fi drain battery when idle
Location services use your phone's GPS, which is power-hungry. Many apps request location permission but do not actually need it constantly. Go to Settings > Privacy & Security > Location Services and turn it off entirely, or scroll down and turn it off for individual apps. Most people can turn it off for weather, maps, and social media apps without losing important features.
Bluetooth and Wi-Fi searching also drain battery. If you are not using Bluetooth headphones or a smartwatch, turn Bluetooth off in Control Center. If you are moving between locations and your phone is searching for Wi-Fi networks, turn Wi-Fi off too. Both can be toggled in Control Center by swiping down from the top-right corner.
Check which apps are draining your battery the most
Open Settings > Battery to see a list of apps ranked by how much power they used in the last 24 hours or the last 10 days. If one app is using far more than the others, you have three choices: close it when you are not using it, uninstall it, or turn off its background app refresh. Tap the app name to see whether it is using power because you are actively using it or because it is running in the background.
Some apps drain battery because they have a bug or because they are set to refresh constantly. Social media apps, music streaming, and navigation apps are normal power users. If an app you barely use is in the top three, uninstalling it is often faster than troubleshooting why it is draining power.
Turn off notifications and vibration for apps you do not need to monitor
Every notification wakes your screen and uses power. Every vibration uses the motor in your phone. Turning off notifications for apps you do not need to check constantly saves battery. Go to Settings > Notifications and scroll through the list. For each app, tap it and toggle off Allow Notifications, or choose Quiet Notifications to let them arrive without waking your screen or vibrating.
Vibration uses more power than sound, so if you want to keep notifications, turn off vibration for less important apps. Go to Settings > Sounds & Haptics and toggle off Vibration, or do it per-app in the Notifications settings.
Disable visual effects and animations
Your iPhone uses animations when you open apps, swipe between screens, and open folders. These animations look smooth but they use power. Turning off motion and reducing transparency saves battery. Go to Settings > Accessibility > Display & Text Size and toggle on Reduce Motion. This removes most animations and makes your phone feel snappier too.
You can also reduce transparency, which makes your phone work less hard to blend colors. In the same menu, toggle on Increase Contrast. These changes are subtle but add up over the course of a day.
Keep your iPhone cool and avoid extreme temperatures
Batteries drain faster when they are hot. If your phone gets warm, move it away from direct sunlight and let it cool down. Avoid using it while it is charging, because that generates heat. If your phone is very hot, iOS will slow it down to protect the battery, which also drains power faster.
Cold temperatures also drain battery faster, but the effect is temporary — your battery will recover when the phone warms up. Extreme heat (above 95 degrees Fahrenheit) can permanently damage your battery, so keep your phone out of hot cars and direct sun.
Frequently Asked Questions
Does Low Power Mode hurt my iPhone battery long-term?
No. Low Power Mode only changes how your phone runs while it is on — it does not affect the battery itself. You can use Low Power Mode every day without damaging your battery. The battery degrades naturally over time based on charge cycles, not on whether you use Low Power Mode.
Will turning off background app refresh stop my email and messages from coming through?
No. Your email and messages will still arrive — you will just see them when you open the app instead of a few seconds before. If you need real-time notifications for email or messages, keep background app refresh on for Mail and Messages, but turn it off for other apps.
What is the difference between Low Power Mode and turning off background app refresh?
Low Power Mode reduces overall performance and slows down many background tasks at once. Turning off background app refresh only stops apps from updating when you are not using them. You can use both together. Low Power Mode is faster to turn on and off, while background app refresh gives you more control over which apps update.
Does closing apps in the background save battery?
Not much. iOS is designed to manage apps efficiently, and closing them manually does not save significant battery. The exception is if an app is actively using power — you will see that in Settings > Battery. In that case, closing it or uninstalling it helps more than swiping it away.
Should I turn off Wi-Fi to save battery?
Only if your phone is searching for networks and not finding any. If you are connected to Wi-Fi, it uses less power than cellular data. If you are moving around and your phone is constantly searching for networks, turning Wi-Fi off saves battery. If you are stationary and connected, leave it on.