Your Reading List & recommendations

How to make your phone battery last longer

Being connected whether you’re in the office or en route to a meeting is the backbone of many small businesses. If you rely on your smartphone to keep rattling through your to-do list while out and about, the sight of a diminishing battery meter is enough to strike fear into your heart.

Here are some top tips to help you keep your phone battery last longer throughout the day.


1. Turn screen brightness down

A quick way to cut down battery use is to turn your screen brightness down.

On the iPhone: swipe up from the bottom of the screen to bring up your control panel, then change the screen brightness using the slider.

On an Android phone: swipe down from the top of the screen to open the control panel, then adjust the screen brightness using the slider.

On a Windows Phone 8.1 phone: You’ll have to set this up in your Action Center first: open the Action Centre by swiping down from the top of the screen, then tap ‘All Settings’ – here you can change one of the four icons to let you switch brightness from automatic to low, medium or high.

2. Keep your software up to date

Most software updates include some kind of efficiency improvement as bugs get ironed out. You’ll usually get a notification if there is new software available for your phone, but here’s how to check in case you’re not sure.

On an iPhone: Go to Settings > General > Software Update

On Android: Go to Settings > About Phone > System Update and check for available updates.

On Windows Phone: Go to Settings > Phone Update

Make sure you back up your phone data before you install any updates.

3. Turn off notifications

It takes a lot of power for your phone to keep scanning for notifications from each app so turn them off to save power. Once you turn notifications off, you’ll have to open an app to get any updates or new messages.

On iPhone: Go to Settings > Notification Centre and then go through all your apps deciding which essential ones to keep alerting you. To disable an app’s automatic alerts, you’ll need to tap its name and then turn “Show in Notification Centre” and “Show on Lock Screen” to off

On Android: Go to Settings > Application Manager, then tap on any non-essential app and untick Show Notifications and save by tapping OK.

On Windows Phone: Go to Settings > Background tasks then block any non-essential apps from running in the background.

4. Use flight mode

Some Android phones and Windows Phone 8.1 come with an energy saving mode that turns off everything that isn’t completely essential and you can get a similar effect by putting your phone in flight mode. You won’t receive calls or texts, but you can turn Wi-Fi on if you want to stay connected.

On iPhone: Swipe up to open the control panel, then tap the aeroplane icon.

On Android: Go to Settings > Wireless and Networks > Airplane Mode

OR press and hold the power key – many phones have the option to enter Flight Mode in the menu that pops up.

On Windows Phone: Go to Settings > Flight Mode and toggle the switch to ‘On’.


For free, impartial business tech tips and advice, why not book a session with an O2 Guru? You can find them in-store, online or over the phone.

Talk to a Guru now


All articles


Public sector

Safe & secure


Tech advice

Work smarter