iPhone 13 battery problem

[Marta997]

I just bought iPhone 13 and I have been using it for two days. This is my first Apple device, so I am not very familiar with the functionality of this devices. But I heard all the best, especially regarding battery endurance and camera quality. I am satisfied with the camera, even if it's not so much of a difference between this one and my last Samsung phone. But the battery is a big question. For these two days, I was charging three times, and the battery lasts like 12-15 hours including time I am working and not using the phone. Last night when I went to bed it was on 60% and when I woke up today it was like 52%?? This has happened before only with really old devices. Also yesterday, the phone heated up a lot just because I was using app for food delivery and the phone was working so slowly that I couldn't type a number for delivery. I don't know if is this normal, but I never experienced something similar with a brand-new device.

 

[Splitrail]

Some say that new phones go through an initial process of a sort of "break-in", and that there may be several days of what you describe.
Also, in settings > battery > scroll down to "battery usage by app" and "activity" to see if there are particular apps that are excessively consuming battery power.