With wifi i used with zero brightness auto brightness turned off I did this test that how origin os 6 works on December 25th Is tested battery drain 15h 53 min usage with single charge iQOO neo 10 😂 I'm very heavy user's you can see my stats everytime it's around 12 hours + after update I lost 1 hour 53 min battery backup with out gaming around 2 hour + it could be lost worst battery backup after update it's feel like something around 5500 mah battery backup it's a beta so i can't complaint about this issue 😅 if same happens again with stable then it might be big issue 

1st picture is before origin os 6 fantastic backup

2nd pic is after origin os 6 poor battery backup after origin os 6 

3rd pic before origin os 6 with mobile date no gaming causual usage i know 5g consume 100 to 30 5g usage i know 5g consume more battery with 30 to 1 wifi usage i got 14 hours is very decent backup with funtouch os 

4th pic is 4th day of origin os 6 usage most of the times consume more battery this test run after 3 days it's fix battery drain issue but it's not with last charge i need 128 percent of battery to get 14  hours battery backup with 5g iQOO need to fix this huge decrease around 29 percentage extra need to get 14 hours battery backup 

Poor battery backup and issue