Turn down brightness

Your screen is the component that uses the most battery life.

Using the Auto Brightness feature on your phone will save energy by reducing screen brightness when there’s less light.

It adjusts according to light conditions, but you can also use the slider to turn brightness down further.

Reduce screen timeout

Auto-lock on an iPhone, or Screen Timout on other phones is when your screen turns off after a set period of time.

Most phones are set to lock at about two minutes without use, but you can reduce this time to save more energy.

One minute or 30 seconds might work for you, but you could find that your screen dims too soon when you are reading a long chunk of text.

Choose a dark theme

By turning on dark mode or picking a dark theme for your phone, you will prolong your battery life.

When displaying black the pixels in your screen don’t need to display anything, so they don’t turn on.
This means no energy is used.

However, if your phone does not have an OLED screen, which includes all iPhones before the iPhone X, a dark theme won’t impact your battery life.