Fast battery drain on iPhone 16 Pro Max

iPhone 16pro max battery drain very fast. Each 5minutes 2% drains. I just brought 2days ago. I am really frustrated about 16pro max battery life. I already have done troubleshooting. But still fast draining. Please apple fix this issue with new update. Even if your mobile is locked and background is empty/cleared, after couple hours you will see that battery loss some parentage. I make my phone 100%, then sleep. After waking up 8hours I saw battery is 97%. Even my background was fresh , data was off. I have never faced this problem any previous iPhone.

i have cordial request to apple inc. please release a iOS update for battery issues.

[Re-Titled by Moderator]