I've had fantastic battery life on 14.6 RC1 & RC2. Consistently around 10 hours of screen-on time on my 12PM. On 14.5, it was more like 6-8 hrs.I am on 14.4.2 as well for the same reason. With 14.5 battery took a hit, also with Bluetooth issues for many people. iOS 14.6 apparently solves some of this issues, but the battery life is terrible, at least with RC1. We’ll see if the second RC solves it, or at least iOS 14.7 offers better battery life without breaking anything else.