At a glance: Optimise the iPhone battery

• Determine the battery usage of individual apps
• Deactivate location services and background app refresh
• Temporarily switch off Siri
• Calibrate the iPhone battery
• The battery can be drained more quickly for a short time after an iOS update

Tips: How to save your iPhone rechargeable battery

If your phone battery is draining quickly, despite charging your mobile phone correctly, you can solve some problems in just a few steps – we’ll explain what you should do specifically on an iPhone.

Prioritise apps (and push notifications)

If you would like to extend your iPhone battery life, it’s worth first identifying the apps with a high energy usage. To do this, go into the Settings and select “Battery” under “General”. Here you can see the battery usage of individual apps and can better understand why your iPhone battery is draining quickly.

To protect your iPhone battery, your motto when it comes to apps with a high power consumption and push notifications should be: Less is more. If your iPhone battery is draining quickly, you should regularly get rid of apps that you hardly use.

Battery-saving display settings

To always have your display set to precisely the brightness you need, it’s recommended you set it to auto brightness – this not only helps your eyes but also your iPhone rechargeable battery. How practical that your iPhone has an ambient light sensor, which controls the display brightness automatically based on its surroundings.

First, go into the settings to “Accessibility”, then to “Display and Text Size”, and then “Auto-brightness”.

Switch off iPhone location services

Wherever you currently are – some apps try to access your location in that very moment. This is not only unnecessary, but also drains your battery more quickly. To extend your iPhone battery life, you can deactivate iPhone location services with just a few clicks.

To do this, go into Settings and then continue to “Privacy & Security”. Click here on “Location Services”. You can now completely switch off the location services or choose for each app whether you want to allow your location to be determined when using the app or turn off localisation.

Deactivate Apple background app refresh

If it often happens that your iPhone suddenly drains quickly, it might be worth taking a look at the background refresh for your apps.

To do this, go into the settings on your iPhone, click on “General” and then on “Background app refresh”. Determine for each app individually whether or not this should obtain new content in the background. Especially for apps that you use less often, there isn’t usually anything to stop you deactivating background app refresh.

Deactivate Siri

Siri accompanies many of us in our everyday lives and it’s hard to imagine life without it – helpful support, although it uses energy: The voice assistant requires a great deal of power from iPhone batteries. To protect your iPhone battery, it’s worth giving the voice assistant (and yourself) a little rest now and then.

To do this, open the settings and click on “Siri & Search”. There you can now easily switch off “Listen for ‘Hey Siri’”.

Calibrate the iPhone battery

Before you use our tips, it’s recommended to calibrate the iPhone battery to get an idea of the battery capacity. To do this, drain your iPhone battery until the iPhone switches itself off. Then connect it to a power supply and let it charge fully without any interruptions – ideally, for one hour longer than necessary. We have a few tips for you if your iPhone charges slowly.

Drain the battery again and leave your iPhone for a few hours to achieve a deep discharge of the rechargeable battery. To ensure that the deep discharge was successful, you should attempt to switch the iPhone on. If it does not respond, it has ben deep-discharged. You can now recharge your iPhone. Your iPhone rechargeable battery is now calibrated and should be fully functional. What's more: In the settings, you can find “Battery” and “Battery health”, where you can easily check your maximum battery capacity.

iOS 15 update: Battery draining fast

It’s not uncommon for the iPhone battery to be drained more quickly than it used to be after a major update to iOS 15. Give your iPhone a couple of days until all of the exciting features are up to date. However, if you’re having serious problems, you shouldn’t hesitate to contact a professional mobile phone service.

If your iPhone gets hot and the battery is drained fast

If your mobile phone frequently gets very hot and drains fast, this may be due to a faulty iPhone battery. In this case, you should contact the manufacturer or a mobile phone service right away to have your rechargeable battery checked professionally and, if necessary, replaced.

Discover power banks

If you have take our tips above to heart and still often need to charge your iPhone when you’re on the move, we recommend a power bank as a handy everyday companion – so you can relax whenever you’re on the move without worrying about your battery. You’re always on the safe side with the powerful power packs from Hama, such as the "Supreme 20HD", the "PD10-HD" or the "MagPower5" – find out more in our power bank tips.