The Anker MagGo Power Bank with a capacity of 10,000 mAh can fully charge your iPhone 16 Pro once, depending on the size of your iPhone's battery. An iPhone 16 Pro usually has a battery of around 4,500 mAh. Since the Power Bank has a capacity of 10,000 mAh, it should be enough to fully charge your iPhone at least once, provided that the Power Bank is fully charged and no other devices are being charged in the meantime.