iPhone 15 pro max heating & battery drain

Hi arsh151,

Thank you for using the Apple Support Communities! We would recommend the guidance in the article below that can help:

If your iPhone or iPad gets too hot or too cold

Hope this helps!

Have a great day.

Thanks for replying, arsh151, at this point, please contact Apple directly for further assistance: Apple Support

Have a great day and thanks for using the Apple Support Communities!