The design life of Apple's mobile phone battery is generally around 500 cycles. After one year of normal use, the mobile phone will have obvious battery loss, and the battery health is generally between 80% and 90%. The battery health is 90% normal, indicating that the battery life has been lost, but the battery life does not affect the use and can be replaced. How long Apple xs Battery Health 90 can last mainly depends on the user's habits. If you are generally concerned about batteries, it will take about two years.