For entire day, battery consumed for oneui home is around 1 to 3. Might be an error. I've purchased my handset recently and after one ui 2nd beta update my was draining too bad compared to one ui 5.1. I used to charge my device for 100 percent but after 2nd beta update its consuming way too bad. My screen on time was like around between 5 to 6hrs and now after maintaining battery percentage in between 20 to 85 , battery backup is improved. So Try to maintain battery in 20 to 85 percent. Dont charge it fully and dont over charge it too. Turn on protect battery. May be this could help.
