How to Save iPhone Battery Life: 10 Settings That Help (2026)

If your iPhone battery is running down faster than expected, a few settings and usage habits may help. The best fix depends on what is using power: screen brightness, weak mobile signal, background activity, a recently installed iOS update, or an ageing battery. There is no single setting that guarantees a specific percentage of extra battery life.

This guide explains how to save iPhone battery life with practical steps you can check on your own phone. Menu names can vary slightly by iPhone model, iOS version, region and carrier.

1. Check which apps are using your battery

Before changing settings, open Settings → Battery. Review the usage chart and the list of apps and system activity. Look for unusually high usage, especially entries labelled Background Activity, No Mobile Coverage or Low Signal. The exact labels depend on your iOS version.

• If one app is using a lot of power, update it, review its permissions and reduce unnecessary use.
• If the phone recently updated iOS or was set up from a backup, background tasks may temporarily affect battery life. Check again after a few days.
• If weak signal is listed, battery drain may be related to the phone repeatedly searching for a usable mobile connection.

2. Turn on Low Power Mode

Low Power Mode is a good first step when you need your charge to last longer. It reduces selected background activity and features, such as some visual effects, automatic downloads, Mail fetching and Background App Refresh. Some features may work differently while it is enabled.

How to turn it on: Open Settings → Battery. On some newer iPhone models and iOS versions, tap Power Mode first, then turn on Low Power Mode. You can also add it to Control Centre.

Low Power Mode is a trade-off: it can extend battery life, but it may reduce or pause certain background functions. On many iPhones it switches off automatically after charging above 80%.

3. Reduce screen brightness and use Auto-Lock

The display can use a meaningful amount of power, especially at high brightness. Use a comfortable brightness level rather than keeping it at maximum indoors.

• Open Control Centre and lower the brightness slider when appropriate.
• Consider enabling Auto-Brightness in Settings → Accessibility → Display & Text Size.
• Set Settings → Display & Brightness → Auto-Lock to a shorter interval, such as 30 seconds, if that suits your routine.

Dark Mode can reduce power use on OLED displays in some situations; the benefit varies with the screen, content and brightness. It is not a guaranteed fix for every iPhone.

4. Review Background App Refresh

Background App Refresh lets supported apps update content when you are not actively using them. It can contribute to power use, but the effect depends on the app and how often it refreshes.

How to adjust it: Go to Settings → General → Background App Refresh. You can choose Off, Wi-Fi, or Wi-Fi & Mobile Data where those options are available, and manage individual apps.

Try disabling it for apps that do not need to refresh in the background. You do not have to turn it off for every app. Background App Refresh is different from push notifications, so do not assume that turning it off will automatically stop all notifications.

5. Prefer Wi-Fi when it is reliable and check mobile signal

Apple notes that Wi-Fi generally uses less power than cellular data when you are accessing the internet. Connect to a reliable Wi-Fi network when practical. A weak mobile signal can also increase power use as your iPhone searches for service.

If you will be somewhere with no coverage for an extended period and do not need calls or mobile connectivity, Airplane Mode may help. Remember that it disables cellular connections until you turn them back on.

6. Use 5G Auto instead of forcing 5G On

On supported 5G iPhones, 5G Auto uses Smart Data mode and can switch to LTE when 5G speeds do not provide a noticeably better experience. This may help battery life, particularly where 5G coverage is inconsistent.

How to check: Settings → Cellular (or Mobile Data) → Cellular Data Options (or Mobile Data Options) → Voice & Data → 5G Auto. The menu depends on your carrier, region and iPhone model. If you do not see this option, your device or plan may not support it.

7. Review Location Services app by app

Location use can affect battery life, particularly when an app accesses location in the background. You usually do not need to disable location for every app.

How to adjust it: Settings → Privacy & Security → Location Services. Review apps that have access to your location and choose While Using the App, Ask Next Time, or Never where appropriate. Keep access enabled for features you rely on, such as navigation or location-based safety functions.

Only change System Services settings if you understand what each option does. Avoid turning off services blindly; some provide useful location, time-zone, emergency or device features.

8. Adjust Mail fetching if you do not need instant email

If the built-in Mail app is using more power than expected, review how frequently accounts check for new messages. Depending on your iOS version, open Settings → Apps → Mail → Mail Accounts → Fetch New Data, or the equivalent Mail settings path.

Where available, choosing a less frequent fetch schedule or Manual can reduce background checking, but new messages may not appear as quickly. Push and Fetch availability also depends on the email provider and account type.

9. Review Always-On Display, notifications and widgets

On supported Pro models, Always-On Display keeps some Lock Screen information visible. If you do not use it, check Settings → Display & Brightness → Always On Display and turn it off if the option is available.

Also consider reducing notifications from apps that frequently wake the screen and removing Lock Screen widgets or Live Activities you rarely use. The savings vary; these are optional adjustments rather than guaranteed large battery fixes.

10. Keep iOS current and check battery health

Install available iOS updates when convenient, especially updates that address bugs. After a major update, battery life may be temporarily lower while background tasks finish. Check Settings → Battery again after a few days before concluding that the update caused a lasting problem.

Battery capacity also decreases as a rechargeable battery ages. To check its condition:

• iPhone 15 and later: Settings → Battery → Battery Health, where supported.
• iPhone 14 and earlier: Settings → Battery → Battery Health & Charging.

If the phone shows a service recommendation, unexpected shutdowns, swelling, or severe battery problems, contact Apple or an authorised service provider. A battery health percentage alone does not explain every case of rapid drain.

If your iPhone battery still drains quickly

1. Open Settings → Battery and note the apps or system activities at the top of the list.
2. Check whether the drain began after an iOS update, restoring a backup, installing an app or changing signal conditions.
3. Update apps and iOS where appropriate, then restart the iPhone if the problem persists.
4. Compare usage over several days under similar conditions instead of judging from one unusual day.
5. Check Battery Health and seek service if iOS recommends it or the device shows signs of battery damage.

Avoid “battery booster” apps that claim to repair battery health or guarantee extra hours. Apps cannot restore the chemical capacity of an aged battery.

Frequently asked questions

What is the best setting to save iPhone battery?

Start by checking Settings → Battery to find the cause. Low Power Mode is a useful quick option, while lowering screen brightness and reviewing apps with high background activity may help with day-to-day drain.

Does turning off Background App Refresh save battery?

It can help if apps are using noticeable background activity, but the amount varies. Try turning it off for apps you do not need to update in the background rather than expecting a fixed percentage improvement.

Should I turn off Location Services completely?

Usually, it is better to review permissions app by app and restrict background location where it is not needed. Keep location access for services and apps you rely on.

Does 5G use more battery than LTE?

Battery use depends on signal strength, network conditions and what you are doing. On supported devices, 5G Auto can switch to LTE when 5G speed is not needed and may help reduce power use.

Why did my battery drain faster after an iOS update?

Some tasks can continue in the background after an update and temporarily affect battery life. Check Settings → Battery and review it again after a few days. If the issue continues, investigate app usage, signal strength and battery health.

When should I replace my iPhone battery?

Check Battery Health for a service recommendation and watch for unexpected shutdowns or noticeably reduced runtime. Apple or an authorised service provider can assess whether replacement is appropriate.

Final takeaway

To improve iPhone battery life, begin with the Battery usage screen, try Low Power Mode when needed, manage brightness, and address apps or network conditions that are actually using power. Change one or two settings at a time so you can see what helps without disabling features you need.

For official, model-specific guidance, read Apple’s guide to an iPhone battery that drains too quickly.

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