POWERCORE ESSENTIAL 20000 PD, ANKER USB C POWER BANK (18W) Ultra-High Cell Capacity POWER BANK: The enormous 20,000mAh cell capacity allows the iPhone XS to be charged more than five times, the Samsung Galaxy S10 to be charged nearly five times, the iPhone 11 to be charged more than four times, and the iPad mini 5 to be charged more than two and a half times. Advanced Charging Technology: The trickle-charging mode is the most effective way to charge low-power accessories, and Anker's proprietary PowerIQ and VoltageBoost technologies work together to provide your devices with an optimized charge. Two devices can be charged simultaneously thanks to the twin USB ports. Other devices cannot be charged via the USB-C port. Versatile Recharging: You have more choices for how to recharge because it has both a USB-C and Micro USB input port.