Iphone 14 pro max is draining battery after iOS 18 update

I have been using 14 Pro Max from a year , never had an issue with battery since i bought it on 2023. Was always confident even with last 15% , now this experience has drastically changed after i updated to iOS 18.0 , battery evaporates like a drop of water on a sunny day, anyone else face the same issue? Is there a solution.