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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchYou can often make a phone last longer between charges by finding what is using power, reducing screen use, and limiting unnecessary background activity. Start with your phone’s battery-usage screen rather than changing every setting at once; the right adjustments depend on your apps, device and software.
1. Find what is using your battery
Open Settings > Battery and review recent battery use and app activity. On iPhone, iOS reports the share of battery used by each app; on Galaxy phones, Samsung provides battery and background-usage controls. Android menus vary by manufacturer and software version, so look for the equivalent battery-use screen if the labels differ. Apple Support and Samsung Support describe these checks.
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Look for apps or activity that coincide with the drain: for example, an app with substantial background use or repeated high screen use. This is a clue about your own phone, not proof that the same app or setting is a problem for everyone. Change one or two relevant settings, then see whether your normal use improves.
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A bright display and a long screen timeout can use more battery. Lower brightness to a comfortable level, enable adaptive or automatic brightness if it works well for you, and set the screen to turn off sooner when idle. Google recommends reducing brightness and screen timeout for Android devices; Samsung and Apple also identify high brightness as a battery-use factor.
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On Android, the exact path and the name of the brightness and timeout controls depend on the maker and version. On iPhone, adjust brightness in Control Center or in Settings. Choose a level that remains comfortable and readable rather than making the display difficult to use.
3. Restrict background activity selectively
Some apps refresh or perform work when you are not actively using them. If battery usage points to an app that does not need frequent updates, restrict its background activity. Apple documents Settings > General > Background App Refresh; on Galaxy devices, use the battery or background-usage controls to limit selected apps. Labels and available controls vary by model and software.
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Keep background access for functions you rely on, such as messaging, navigation, or health features. Restricting an app may mean its content, alerts, or updates arrive later. Android phones from other manufacturers may offer different controls; Samsung’s instructions apply to Galaxy devices, not every Android phone.
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Turn on Battery Saver on Android or Low Power Mode on iPhone when getting through the next stretch matters more than immediate background activity. These modes can limit background work and other features. Google notes that Battery Saver may delay apps and network connections; Samsung’s power-saving mode also restricts background behavior and features. Your phone’s own settings explain what its mode changes.
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These modes are useful when you need to conserve the charge already in the phone, but they can affect how promptly apps update or deliver notifications. Switch the mode off again if those delays interfere with something you need.
5. Consider what you are doing on the phone
Demanding apps, high-resolution streaming and location services can contribute to battery use. If a particular activity appears alongside rapid drain, consider lowering streaming quality, reducing time in a demanding app, or limiting location access for apps that do not need it. Keep location and connectivity available when they are necessary for your use; disabling them wholesale can break useful functions without addressing the cause of your drain.
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6. Give recent updates time, then check battery health
If the change began just after a software update, update-related work in the background may temporarily affect battery use and thermal performance. Apple includes this possibility in its battery-drain troubleshooting guidance. If the problem continues during ordinary use, investigate it as a persistent issue rather than assuming the update is still the cause.
On supported iPhone models, check Settings > Battery > Battery Health. This reports battery status; changing settings cannot restore the original capacity of a worn battery. If the phone reports a battery concern, follow the manufacturer’s model-specific support guidance. Android battery-health screens and service options differ by manufacturer, so consult the support information for your exact model.
Quick Recap
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How the guidance differs by platform
| What to check | iPhone | Android |
|---|---|---|
| Battery use | Settings > Battery shows app battery use. Apple Support | Open Settings > Battery or the maker’s equivalent; screens vary by device. Google Android Help |
| Background activity | Background App Refresh can be adjusted in Settings > General > Background App Refresh. Apple | Controls depend on the maker. Galaxy phones offer background-usage limits. Samsung Support |
| Power-saving mode | Low Power Mode limits some activity and features; see your iPhone’s settings and Apple guidance. Apple Support | Battery Saver can delay apps and network connections; availability and behavior vary by device. Google Android Help |
| Battery health | Settings > Battery > Battery Health on supported models. Apple Support | Availability and location depend on manufacturer and model; consult that device’s support guidance. |
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