The Green Lion Nairo 20000mAh power bank is a portable charger with enough power and efficiency to fulfill any charging request. With a 20000mAh battery and a charge of 74Wh, the tester is rated with 11200mAh nominal output for charging on the go. The power bank has USB-C and USB-A outputs, with the former output capable of fast charging at 20W max speed, and the USB-A can go as far as 22.5W. Supporting 20W PD fast charge also ensures a quick power supply to the devices. The charger permits recharging via USB-C input up to 18W max. Moreover, the Green Lion Nairo is a flight-approved power bank. There is a digital display showing the remaining percentage of battery, right when charging is needed. Perfect for daily use, the power bank features rugged construction from ABS + PC.