Hello, I'm still learning to master i OS 9.1 on my new iPad Air 2. One thing got my attention. I put the iPad on the charge when the OS tells me to. After a full charge, I get two small straight lines for "usage" and "standby". I've seen numbers (hours and minutes) a few times but most of the time, the lines appear. So how can I know the number of hours and minutes it took to drain the battery. I turn off the iPad each night...in order to save the battery. Plus I don't see a low power mode as I can see one on a friends iPhone 6. I'm running 9.1. What am I doing wrong or not knowing.
As usual, thanks in advance for your help
As usual, thanks in advance for your help