10 reasons why your phone battery keeps dying

Apps running in the background

There's a difference between minimising and quitting an app. Some Android users may have found that some apps simply won't shut down at all, slowly draining battery life. The best cure for this is to download a good app-killer app. iPhone users have a slightly easier time. Simply double-tap the home button and scroll along the multitasking menu to view apps currently running.For those still running iOS6, to close running apps press and hold on any app until they start to quiver and hit the red X.  If you've updated to iOS7 simply double-tap the home button and swipe upwards on the apps you want to close.