In general, the 20000wh66w charging bank can be charged about 3 times. However, the number of times depends on the device used and its battery capacity. For example, if you use the iPhone 13 Pro Max, its battery capacity is 4352mAh, then theoretically this charging bank can be charged about 1.5 times.
In addition, here is some additional information for your reference:
The capacity of this charging bank is 20000mAh, and the output power can reach 66W. That means it can charge a device to 50% in about 30 minutes.
This charging bank also has LED digital display function, can display the power at any time.
The internal PCB intelligent chip of the importing country is used in this charging bank, which can intelligently identify the access device and automatically adjust the output to ensure the charging safety.
This power bank supports charging of 3 devices at the same time, and supports Type-C and Micro USB ports. All in all, this 20000mAh 66W Super Fast Charger is a powerful and convenient product. However, please note that when using any mobile power supply, you should ensure that it is safe, reliable and meets the relevant standards.