To recharge this battery, please use the USB-C port. You will need a USB-C cable and a wall charger to complete the recharging process.
We have supplied two cables in this battery pack to recharge the battery, one is a USB-C to USB-C cable and the other is the USB-A to USB-C cable. Please see below for reference: If you use the USB-C to USB-C cable to recharge the battery, you will need a wall charger with a USB-C port. Since the battery supports Power Delivery(PD), it is suggested to use a Power Delivery wall charger, such as Apple's 18W/20W/61W/87W USB-C AC adapter, Nintendo Switch adapter. The recharging time for using an 18W PD wall charger and USB-C to USB-C cable is 6.5 hours.
If you use the USB-A to USB-C cable to recharge the battery, you will need a wall charger with a USB-A port. For example, you can use a 5V/2A wall charger, such as an iPad or Galaxy adapter. The recharging time for using a 5V/2A wall charger and USB-A to USB-C cable is 21 hours.
If you still have problems with how to recharge the Anker 525 Power Bank (PowerCore 20K), please directly contactAnker Customer Support support@anker.comfor further assistance.
