How to determine real battery health if reading is boosted?

Xyz09t wrote:

sir i know my battery health is boosted so i want to keep real battery health

Why do you believe the battery health on your iPhone has been boosted? If if really has been boosted, there's no way to tell what the true battery health is as it wouldn't have been in any way boosted by Apple. Maybe give us some real history about the phone you have?

If the battery health has been boosted, as you say, then your phone is pretty much unsupportable.

If you just bought it, return it and get your money back.