iPhone 15 pro max battery drain

You can use your iPhone light or you can use your iPhone heavy. There is nothing that you can do to prevent your battery from deteriorating as time elapses. Your battery health is fine and is undergoing normal usage. iPhone batteries, like all rechargeable batteries, are consumable components that become less effective as they age. You should change out the battery once your Battery Health reaches below 80% which will take over 2 years to reach under normal usage. Until then enjoy your iPhone and don’t worry about Battery Health.

Here is some more reading on an iPhone battery and its performance ➡️ iPhone Battery and Performance - Apple Support

Axel F.  

Yes, this happens. My iphone 15 pro max has 63 charge cycles and has 99% battery health.

You are welcome.

Axel F.