I have been running all the iOS Beta 13.1/.2 since they have been release and haven't really had any issues until about a week ago. I noticed my iPhone X was dropping to 50% by 2pm and dying before I could get home where in before it would last until 11PM or so. I turned off almost all background refresh and keep the apps closed. I cannot figure out why it is doing this. A co-worker is having the same issue. I swear the back top 1/3 of the phone is warmer than the rest without use. I am trying the new final release that was issued today hoping it fixes something.