Do your Android discharge just at those moments when you need it most?
Take control of your phone's battery consumption by using the app JuiceDefender. With a single touch you disable the most battery consuming apps and functions on the phone.
Choose from a preset function including disable 3G/4G and WiFi, or customize your own settings and determine which of your apps will be temporarily closed down by a button in the app. JuiceDefender is free and can be downloaded at http://www.juicedefender.com