Brick’s power bank energy: 5000mAh *3.7V = 18.5 Watt-hours; iPhone battery cell energy: 2815mAh * 3.7V = 10.4 Watt-hours; Efficient coefficient: input * output => 0.85*0.85 = 0.7225; Charges: 18.5/10.4 * 0.7225 = ~1.3 times; A Brick power bank will fully charge an iPhone 12 approximately 1.3 times. Anker 621 Magnetic Battery is a 5000mAh Magnetic Wireless Portable Charger for the iPhone 13/12 Series. Input: USB-C port: 5V = 2.4A Recharge the 621 Magnetic Battery with at least a 12W wall charger. *When using a USB-A wall charger (such as the iPad’s USB wall plug), you need to use a USB A to C cable (not included). *When using a USB-C With higher quality components like you find in the Cascade, you can expect to get about 80% of the total charge transferred to your device. That’s why we tell our customers to expect the Cascade 10000mAh power bank to recharge their smartphone about three times and the 6000mAh Cascade power bank about two times. jwwUHkn.

how many times can 5000mah charge iphone 12