Batter issues on A8 after Oreo update

[Noellyb]

Upgraded to Oreo 3 days ago on my Samsung A8 and battery is heavily draining now. Are Samsung bring out a patch for this?

[Talí]

After updates it is normal that battery is drained faster for a couple of days.

It would help if you add some more information like how fast, a screenshot of battery use or a timespan or something.