iPhone XS Max battery one-year warranty

Battery description for iPhone XS MAX device. Battery warranty one year (12 months). At Rezan store. It is recommended to install and change the battery by a specialized person for your safety. It shows the battery charge level, but the battery health percentage in the settings does not appear, but the battery works properly and the absence of the battery level percentage is due to the system from the device manufacturer. (A message appears on modern devices after changing the battery stating that the device cannot verify the battery). Ignore this message and use the battery, and do not worry.