The experience I described was in Oct 2016. I may be mistaken, but I don’t believe there was any battery charge history (at least not accessible to users) in i

The experience I described was in Oct 2016. I may be mistaken, but I don’t believe there was any battery charge history (at least not accessible to users) in iOS at the time? In any event, I am not sure the unexpected shutdowns would have manifested themselves as sudden reductions in charge. Once restarted, the iPhone reported a similar charge to before the shutdown.