The iphone12mini supports 15W wireless fast charging, and Apple officially supports 15W fast charging with its own magnetic magnet or magnetic wireless charging that has been opened to a third party.
The iPhone 12mini has a 2227mAh battery.
The 6.1-inch iPhone 12 has a 2775mAh battery; The 6.1-inch iPhone 12 Pro has a battery capacity of 2815mAh, and the 6.7-inch iPhone 12 Pro Max has a battery capacity of 3687mAh.