The Anker Advantage: Join the 50 million+ powered by our leading technology. Ultra-high capacity: The massive 20, 000mAh capacity provides more than 5 and a half charges for iPhone XS, more than 4 full charges for Samsung Galaxy S10, and over 2 and a half charges for iPad mini 5. High-speed charging: deliver an 18W high-speed charge to phones, Tablets, and more via the USB-C power delivery port or the Qualcomm Quick Charge-enabled USB port.