The Joyroom JR-QP192 20000mAh 22.5W Fast Charging Power Bank is the perfect addition to any mobile device user’s toolkit. It has a Li-polymer battery with a capacity of 20000mAh 3.7V (74Wh). It has a 20000 mAh/22.5 W real capacity, and this power bank can charge most phones 3–5 times and other USB devices multiple times for an average of 9 days of unrestrained usage per charge. There is no need to worry about losing contact with anyone due to being out of power. This power bank features a built-in large LED digital display that shows the remaining battery life and charging status. It also has three output ports: two USB-A outputs, one USB-C input and output, and one Micro USB input, making it compatible with a variety of devices.