smart Battery Case for iPhone 14 13 12 11 Pro Max Mini Power Bank Charging Cover
The most important reason is the conversion rate. For iPhone 11 Pro Max ,6800mAh,Rated capacity: 4000-4500mAh. For iPhone 12 Pro Max ,6800mAh,Rated capacity: 4000-4500mAh. For iPhone 12 Mini ,6800mAh,Rated capacity: 3500-4000mAh.