same problem I have since beta 1 when phone is not in use its draining battery so fast I tested I put aside my phone for 6 hours screen was off all the time and in that 6 hours battery drained 10 % when b4 beta it used to drain only like 3 or 4 percent
Try deleting cache partition. I was also facing the same issue. My overnight battery drain was about 14 to 16 percent. After deleting the cache partition (different than optimizing using device care) battery life has improved and overnight drain is about 4-5 percent.
