So I found that my battery lasts a lot longer one day when I blocked Nokia Drive from running in the background. Go to:
Settings -> Swipe over to applications ->background tasks -> tap on Nokia Drive and block it.
If you don't do this, then when you "exit" out of the app, it'll still sit in the background grinding away at your battery.
Settings -> Swipe over to applications ->background tasks -> tap on Nokia Drive and block it.
If you don't do this, then when you "exit" out of the app, it'll still sit in the background grinding away at your battery.