I m using iPhone 11 and past 3 days my battery health reduced by 2 present…

Hi there hemant7474,

We understand you have a question about the Maximum Capacity for the battery on your iPhone 11, and we'd like to share some resources.

It looks like you've already reviewed About the battery and performance of iPhone 11 and later.

Since the battery in your iPhone is a consumable part, it is expected for the Maximum Capacity to decrease over time. Learn more about this here: iPhone Battery and Performance

Regards.