Battery life on Pixel 2XL with Android 10 was excellent. With my usage patter from 4.5 to 6 hrs SOT and easily 24 hours on a charge. Since Android 11, battery drains about 50% faster with basically same usage pattern. Struggle to get 4 hrs SOT and only about 12 hrs without needing to charge. No new apps; several reboots; have not done factory data reset .