iPhone issue
I have an iPhone XR that's fully updated. It's at 79% battery capacity. This week, it's been acting weird and will randomly freeze for minutes on end. The home and lock screen will go black (with the time still showing on my lock screen but over a black screen instead of my photo) and it will say it has like 1% battery. When it unfreezes, it goes back to the actual battery percentage. Any idea why this is happening? I have restarted my phone multiple times.
iPhone 6, iOS 10