Can you please recalibrate my battery health

There is no option to recalibrate your battery. There was nothing for you to do as it happened automatically. If your phone say it's battery health is 97%, that is what your battery health is. You do realize that is 3% from perfect. And every time you fully charge your battery, battery health will decline little by little. You are worrying needlessly over nothing. Batteries are consumable parts, which over time lose their ability to hold a full charge as they age. This is normal. It is what batteries do. When the battery health on your phone reaches 80% or less, then you pay to have Apple replace the battery. You are a long way from that.

Your signature says you have iPhone 11. When iOS 14.5 was released, did you update to it? If you did, your battery health likely already recalibrated and there's nothing more anyone can do for it.

Do pay attention to the suggestions in this link --> https://www.apple.com/batteries/maximizing-performance/

No

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