Apple: Tips for iPhone, iPad, and iPod touch

 

Update to the latest software.

Always make sure your device is using the latest version of iOS.

• If you are using iOS 5 or later, see if you need an update. Go to Settings > General > Software Update.
• If an update is available, you can plug your device into a power source and update wirelessly or plug it into your computer and update with the latest version of iTunes.

Optimize your settings.

There are two simple ways you can preserve battery life — no matter how you use your device: adjust your screen brightness and use Wi‑Fi.

Dim the screen or turn on Auto-Brightness to extend battery life.

• To dim, open Control Center and drag the Brightness slider to the bottom.
• Auto-Brightness adjusts your screen to lighting conditions automatically. To activate it, go to Settings > Accessibility. Tap Display & Text Size, then turn on Auto-Brightness.

When you use your device to access data, a Wi‑Fi connection uses less power than a cellular network — so keep Wi‑Fi on at all times. To turn on Wi‑Fi, go to Settings > Wi‑Fi to access a Wi‑Fi network.

Enable Low Power Mode.

Introduced with iOS 9, Low Power Mode is an easy way to extend the battery life of your iPhone when it starts to get low. Your iPhone lets you know when your battery level goes down to 20%, and again at 10%, and lets you turn on Low Power Mode with one tap. Or you can enable it by going to Settings > Battery. Low Power Mode reduces display brightness, optimizes device performance, and minimizes system animations. Apps including Mail will not download content in the background, and features like AirDrop, iCloud sync, and Continuity will be disabled. You can still use key functions like making and receiving phone calls, email, and messages, accessing the Internet, and more. And when your phone charges up again, Low Power Mode automatically switches off.

View Battery Usage information

With iOS, you can easily manage your device’s battery life, because you can see the proportion of your battery used by each app (unless the device is charging). To view your usage, go to Settings > Battery.

Here are the messages you may see listed below the apps you’ve been using:

Background Activity. This indicates that the battery was used by the app while it was in the background — that is, while you were using another app.

• To improve battery life, you can turn off the feature that allows apps to refresh in the background. Go to Settings > General > Background App Refresh and select Wi-Fi, Wi-Fi & Cellular Data, or Off to turn off Background App Refresh entirely.
• If the Mail app lists Background Activity, you can choose to fetch data manually or increase the fetch interval. Go to Settings > Accounts & Passwords > Fetch New Data.

Location and Background Location. This indicates that the app is using location services.

• You can optimize your battery life by turning off Location Services for the app. Turn off in Settings > Privacy > Location Services.
• In Location Services, you can see each app listed with its permission setting. Apps that recently used location services have an indicator next to the on/off switch.

Home & Lock Screen. This indicates that the Home screen or Lock screen was displayed on your device. For example, the display was awakened by pressing the Home button or by a notification.

• If an app frequently wakes your display with notifications, you can turn off push notifications for the app in Settings > Notifications. Tap the app and set Allow Notifications to Off.

No Cell Coverage and Low Signal. This indicates either that you are in a poor cell coverage area and your iOS device is searching for a better signal or that you’ve used your device in low-signal conditions, which has affected your battery life.

• You can optimize your battery life by turning on Airplane mode. Open Control Center and tap the Airplane mode icon. Note that you cannot make or receive calls while in Airplane mode.

Plug in and power on your computer to charge your device.

Make sure your computer is plugged in and powered on when you’re using it to charge your iOS device via USB. If your device is connected to a computer that’s turned off or is in sleep or standby mode, your device’s battery may drain. Note that iPhone 3G and iPhone 3GS cannot be charged with a FireWire power adapter or FireWire-based car charger.

 

Source: Apple official

8 tips for maximizing your smartphone’s battery life

1. Reduce your screen brightness

This can help extend your battery life significantly, especially for devices with larger and sharper screens (that is, with more pixels). The only time you probably need your phone at 100 percent brightness is outdoors, midday, when the sun is at its brightest. Any other time, you can reduce your phone brightness to 75 percent or less. You can adjust this in Android by going to Settings > Display or by swiping down from the Notifications bar. Most recent phones also have an Adaptive Brightness setting, letting the device adjust automatically. Be sure to turn that on.

Some devices, like Samsung’s Galaxy S22 and Galaxy Z Fold3 5G, also feature high screen refresh rates up to 120Hz, which provides smoother viewing but also drains battery life faster. You can also activate the adaptive refresh rate setting so that the device will adjust depending on what kind of content you are viewing, further preserving your battery life.

2. Change your screen theme and wallpaper to dark

This also translates to noticeable power savings. On Android, go to your phone’s Launcher app by holding down an empty part of your home screen and click on Settings. From there, you can choose different colored wallpapers and toggle between light and dark themes for other screens. The latest Samsung smartphones, including the new Galaxy Z Fold3 and Galaxy Z Flip3 foldables, as well as the Galaxy S22, also feature a Dark mode that is specifically designed to reduce battery life and be easy on the eyes later in the day. You can even set a schedule for Dark mode to switch on at a certain time each day.

3. Shorten the time before your screen goes to sleep

You can save power by keeping your screen off when you don’t need it. This also helps prevent pocket dials and other kinds of accidental screen touches. This feature is also available from Settings > Display. Screen timeout can be set to anywhere from 10 minutes down to 15 seconds.

4. Adjust the settings on power-draining apps

Many apps are busy beavers, waking up your phone to download content and sending you notifications while you’re on the go, always tethered to your LTE carrier. There are several solutions.

On Samsung phones, you can identify the power-hogging apps by going to Settings > Battery and Device Care > Battery > Background Usage Limits and then choosing which apps should be turned off. (On other Android phones, use Force Stop from Settings > Battery.)

For Google Maps, Spotify and other streaming apps, make sure to pre-download maps, playlists and podcasts over Wi-Fi before you go out. You can also turn off notifications from other apps and limit their background activity. Collectively, these changes conserve significant battery life.

5. Turn on power-saving mode

Drastic times — like when your battery falls below 15 percent — call for drastic measures. The power-saving mode on Galaxy devices is a smart feature that automatically decreases screen brightness, reduces screen resolution, limits processor speed and stops background network usage. You can adjust each of these settings and see an estimate of the additional battery life you’ll gain with each change.

On the latest Samsung phones, there is also an Emergency Mode, found under Settings > Safety and Emergency. This lets you sustain your battery for several days, though you’ll only have access to core apps and features. It also sends a message with your location to a chosen contact so they can see where you and your phone are.

6. Turn off location services

Your smartphone’s GPS receiver is one of its biggest power hogs due to the number of apps pinging it, not to mention the chip itself. You can turn off GPS entirely, though that sacrifices many vital services. Alternatively, you can find out which apps are pinging Location and turn off the unnecessary ones individually. In Android, you can do this from Settings > Location. You can accomplish the same by going into Google Maps and pre-downloading maps while you’re on Wi-Fi.

7. Turn off data roaming

Like GPS, the 4G and hyper-fast 5G modems can drain power, especially if you have poor cell signal. If you’re traveling in a remote or mountainous region and your battery life is more important than connectivity, you can temporarily turn off data roaming. In Android, you can do this through Settings > Connections > Mobile Networks. A quicker solution is to turn on Airplane Mode, though this blocks all service, including Wi-Fi.

8. Make use of intelligent performance management

Get proactive and save time: Enable the intelligent performance management system, which you can access through Settings > Battery and Device Care. Galaxy Z Fold3, Z Flip3 and the S22 lineup’s AI engine is smart enough to learn your habits and optimize battery usage accordingly. You can also manually set routines, including when to turn Wi-Fi on or off and when to dim the screen.

Source: Samsung Official