iPhone 11 Pro Max battery, one-year warranty

Description of the battery for iPhone 11 Pro Max device, battery warranty one year (12 months). At Reesan Store, it is recommended to install and replace the battery by a specialist for your safety. It shows the battery charge level, but the battery health percentage in the settings does not appear. However, the battery works correctly and the battery level percentage does not appear due to a system from the device manufacturer. (A message appears on modern devices after changing the battery indicating that the device cannot verify the battery). Ignore this message and use the battery, and do not worry.