Apple's warranty stipulates that if the battery storage capacity of Apple's mobile phone is only 80% or less within the one-year warranty period or within the warranty scope of AppleCare plan, you can go to Apple Store or an Apple authorized service provider to replace the battery of Apple's mobile phone for free.
2.
If the user frequently uses the mobile phone while charging (especially watching videos or playing games), the battery will be excessively damaged due to frequent charging and discharging, resulting in a sharp decline in battery life. If the health of the battery decreases and the user chooses not to replace the battery, the performance of the mobile phone will be limited to ensure the life of the battery.
3.
In addition, users are advised to go to Apple Store or Apple authorized repair point to replace the original battery, so as to ensure the normal performance of the mobile phone after battery replacement (inferior battery will affect the use and even lead to hardware failure of the mobile phone).