There are few things as stressful as the moment you realize your iPhone is dipping below the 20% battery life mark. It’s a feeling of terror and uncertainty — especially if you’re far from an outlet.
But fear not. Here’s what to do to get every last drop of battery life from your soon-to-be-deceased iPhone.
First, close all those apps running in the background. To do this, double-tap your home button and then swipe up to close apps.
Next, go to Settings -> Cellular and switch “Cellular Data” to the off position. This will cut your iPhone off from wireless Internet service, meaning you’ll be without access to email or iMessage — but you’ll still be able to make calls and send and receive regular SMS texts.
If you really don’t need to be accessible for a while and you’re just trying to save your iPhone for when you’ll…
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