This power bank comes with a USB-C to USB-C cable and a USB-A to USB-C cable. See below for reference:

Recharging is done via the power bank’s USB-C port.

If you use the USB-C to USB-C cable, you will need a wall charger with a USB-C port. Using a Power Delivery wall charger, such as a Nintendo Switch charger, or an Apple 18W, 20W, 61W, or 87W charger is suggested. Using an 18W or above Power Delivery wall charger and the USB-C to USB-C cable will take around 6.5 hours to recharge the power bank.

If you use the USB-A to USB-C cable, you will need a wall charger with a USB-A port, for example, an iPad or Samsung Galaxy charger with a 5V/2A output. When using a 5V/2A wall charger and the USB-A to USB-C cable, the recharging time is around 21 hours.

If you’re still not sure how to recharge your Anker 525 Power Bank (PowerCore 20K), please contact us at support@anker.com for further assistance.