Thought one UI 7 was bad

[Evgeni]

How is possible UI 7 update to destroy my battery life completely and now One UI 8 to be even worse cmon samsung 2 hours screen on time 50% gone srlyyyyy 

[Tourbillon De La Vie]

4hr sot on 3 year old battery is good

[Members_1dCzQ4c]

Ui 7.0 destroys also my battery. Impossibile to use. If there isn't a fixing asap I must change to another brand.