Well I don't know what is happening, but even on the latest 9.5.2 release I feel battery has been draining a lot. Ran a 10K yesterday after going to bed with the watch on and 100%. Ended up with a 10% warning in the evening so 24 hours!?Weird. For me its much better with beta 2, but not perferct yet. I expect beta 3 will be better on battery.