Battery life - iPhone 15 pro

hi i have had the new iphone 15 pro for a few days now and i have to say that the battery lasts an outrageous amount of time!!! Before that I had an iPhone 11 pro which I used for 3 years and even in the third year its battery lasted longer! I hope you find a solution to the problem because it's not just me and more and more people share the same after a few days with the new iPhone 15 pro!