for iPhone 11 Pro Max 11 11 Pro Battery Charger CaseExternal Power Bank Cover

For iPhone 11 Pro ,5200mAh,Rated capacity: 3000-3500mAh. For iPhone11 P ro Max ,7000mAh,Rated capacity: 4000-5500mAh. For iPhone11 ,7000mAh,Rated capacity: 4000-5500mAh.

eBay