Mr.Playstation on 29 May 2015
Good luck, you'll need it 
. Also to save battery life turn the phone into battery saver mode ( Turns of Bluetooth, GPS and vibrations and doesn't only dim the screen ) and you can turn off 3G/4G ( I'm guessing that's what you're using ) when you're not using your phone and constantly turn of the phone's screen when not in use. That should be good enough.
