iPhone 15 battery health issues

Hii…I am currently using iPhone 15 , before 17.4.1 update my battery health was 97% once i updated my iPhone to 17.4.1 within 2 to 3 hrs after the update my battery health reduced to 96% after one day it reduced to 95% …Is there any issue on every iPhone 15 or for me alone or what step can i do to resolve this problem to reduced the impact of battery decrease in future updates…

hello bro, month of device purchase? also following any charging practice?

24 September 2023 …Daily charging Once a day …I will charge when it reaches 20% and charge till 80-90% …If some times of more usage i will charge 2nd time (1 or 2 days in week charge twice a day)

Answered in your recent post bro

Kindly continue one discussion with one topic. it will be easy to keep it organized. thank you.