10 Reasons Why Your Phone Battery Runs Out Quickly
Having your screen brightness up high.
Your choice of apps, some apps make use of much battery than others.
Getting constant push notifications.
Having your phone on vibrate mode.
Not switching your WiFi off.
Not embracing airplane mode.
Setting your apps to update automatically
Not bothering to update your phone.
Having your location on all the time.
Not downloading a battery saving app.