I bought my 13 pro max 8 months ago. My battery health was 98% on 8 March 2023 and its 29 March 2023 now and battery health is 95%. Please someone tell me why is my battery dying so fast even i take care of battery cycles. I am very worried.
iPhone 13 Pro Max, iOS 16
Your battery is fine. On average, you should expect Battery Health to decline about 1% a month. So an 8 month old iPhone would be expected to be at about 92-93% by now.
Relax.
You write your iPhone was at 98% and it was 8 months old, and in a few weeks it went from 98 to 95%. There is nothing to worry about. The calculation of the battery's maximum capacity is not updated all the time, therefore a few percent may be taken suddenly at once. Apple recommends that the battery be replaced when it is at 80%, so you have lots of good time left with your current battery.
Just for comparison. A week or two ago I had 99% battery capacity on my iPhone, it is from November 2022 - the other day I checked again and it said 96%, (95.4%) after 157 full charges. I think it is very normal.
You can find more useful information here:
iPhone Battery and Performance - Apple Support
Battery Health
