If your power station is charged fully, but the AC outlet can’t charge the connected device, it could be that the power requirements (Watts) of the connected device exceed the maximum output of the AC outlet.


You can find the maximum output for your power station’s AC outlet below:



Power Station
AC Output (Watts)
A1720: Anker 521 Portable Power Station (PowerHouse 256Wh)200W
A1751: Anker 535 Portable Power Station (PowerHouse 512Wh)500W
A1770: Anker 757 Portable Power Station (PowerHouse 1229Wh)1500W


Make sure that the device you are connecting to the AC outlet is within the maximum output listed above. 

If that doesn’t resolve the problem, please directly contact MyAnker Customer Support for further assistance.