How much is a First Class stamp? http://xnxx.in.net/ xnxx.com Dimming a device's screen brightness will increase battery life, as will turning off Bluetooth wifi and GPS. Try using a standard ringtone rather than vibrate and make sure that when an app is not in use it isn't left open. Unless closed down completely it is still running in the background and therefore putting strain on the device's processor. If your phone or tablet has a sleep setting, set it for the shortest interval so that it shuts down within 30 seconds of use. Also, don't use it as a watch: clicking on the homekey or standby key just to check the time can drain the battery.