Does the iON intelligence app need to be running
Does the app need to be running for the smart battery management to work? Will I need to always make sure the app is running in the background?
No, whenever you initiate the app it automatically updates the battery life data and displays it to you. Slide the percentage page to the left and the app displays the number of hours and minutes that you have left and the approximate time you will run out of battery life.
I only open the app when I need to know exactly where the iPhone battery and case battery are at to determine whether I need to do a quick charge prior to travel. Once I have looked at the app I close it and then double click on the "Home" button and close the app from there just to be safe that all app's not being used are fully shut down.