Watching your iPhone's battery drain rapidly can be frustrating, but there's a simple trick to extend its life. All you need to do is place your iPhone face down when not in use. This prevents the screen from lighting up each time you receive a notification, thanks to the 'Facedown Detection' feature introduced by Apple in iOS 9. By detecting ambient light and proximity, your phone will only give a sound or vibration alert, saving battery life—a boon for anyone with lots of email or group chat notifications. Did you know about this battery-saving trick? Why not try it out? You just have to keep your phone upside down and activate Facedown Detection while reducing notifications and enabling Low Power Mode. For an extra step, turn off location services and regularly update the OS. Have you tried this cool tip? Let us know in the comments!