Battery Juice Booster is a free Android App that allows you increase your battery life by up to 200%!
Your current battery life for your Phone/Tablet will increase by a estimated 3 hours or more just by using this app.Read more
Allows the application to access the phone features of the device. An application with this permission can determine the phone number and serial number of this phone, whether a call is active, the number that call is connected to, ect.
modify/delete SD card contents
Allows an application to write to the SD card.
automatically start at boot
Allows an application to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the application to slow down overall performance of the phone by constantly running.