iPhone's battery draining rapidally in just one month

Notokayforme wrote:

Ok

How do I get apple to replace the battery for me then

Schedule an appointment at your closest Apple Store Genius Bar --> Genius Bar Reservation and Apple Support Options - Apple (UK)

iPhone Battery Replacement - Official Apple Support

You have an iPhone released in 2019, six years ago. There's no telling what you got since it's used. You suggest the health dropped 7% in one month. What is the actual health of the battery in Settings > Battery > Battery Health? If it is 80% or less, the useful life of the battery has been used and the phone needs a new battery, which you can pay Apple to replace at your closest Apple Store Genius Bar.

It's always risky buying used iPhone's from someone.

There are ways people have found to artificially boost the health of a battery before selling it. I'd guess they did that to your phone. If you like the phone and believe you paid a fair price for a 6 year old iPhone, then keep an eye on the battery health and pay Apple to replace the battery when you dip to 80%.

Hello~ Battery health will continue to drop and is not linear. What model and iOS?

iPhone battery and performance - Apple Support

~Katana-San~

Your iPhone is a brand new iPhone, purchased from Apple or an Apple Authorized Seller? What model iPhone is it? How long have you owned it?

Hello~ Well…anything is possible then. Second hand devices are prone to many such issues. It could have a non Apple battery causing an issue. Have you just purchased this iPhone? More details would help us to help you…

~Katana-San~