It takes approximately 2.5 hours to recharge the 622 Magnetic Battery when using a 5V/2A or higher wall charger.   

Normally, it is recommended to charge the 622 Magnetic Battery using a USB-C wall charger (such as the iPhone’s USB-C wall charger) and the included USB-C to USB-C cable. However, you can also use a USB-A wall charger (such as iPad or Samsung USB-A wall plug) to recharge the 622 Magnetic Battery with a USB-A to USB-C cable (not included).

If you have any further questions, please contact MyAnker Customer Support for assistance.