Iphone 11 Battery Health Drop. 4- restore the iPhone data from iCloud backup not laptop. Some iPhone 11 11 Pro and 11 Pro Max users saw inaccurate reports of estimated battery health.
To fix this iOS 145 recalibrates the maximum battery capacity and peak performance capability on the iPhone 11 series models. All batteries degrade overtime usually when you charge the phone past 80 if you kept the battery below 80 it will last longer and the battery health will be higher. My iPhone 12 Pro Max Battery Health dropped to 96.
After a few days Apple changed a new iPhone 11 Pro with different IMEI number.
It was reported earlier that some iPhone 11 Pro Max units were showing a decline in the battery health capacity. Note that if your iPhone is pre-2014 or running iOS 112 or earlier you wont see Battery Health as an option in Settings. Then it suddenly dropped to 89. The phone has logic that calculates the remaining capacity and compares it to the battery spec.
