Airplane mode is available on most smartphones. It essentially shuts off your phone's transmitting function. No calls or texts or packets of data can come or go from your device while in airplane mode, making it ideal for air travel—or when you just need a break. Check your phone's settings to discover how to enable airplane mode:
• iOS Airplane Mode
• Android Airplane Mode
• Windows Phone Airplane Mode
But it's also ideal for another situation: when you need a quick charge.
Because your device is not connected to the internet, you can rest assured there are no applications running in the background, sucking up juice when you need it the most. Your phone's battery will charge more quickly than if you'd left your settings alone.
Of course, switching to airplane mode will also effectively shut down all of your phone's major functions. If you're expecting an important call or text, you'll have to juice up the old fashioned way.