You can charge the power bank once and use it for one week.
It features 2 outputs so you charge two mobile phones at the same time.
Type: Wired Power Bank
Compatible Devices: Multi
Number Of Charging Ports: 2
Model Number : D-M219
Capacity: 20000 milliampere/hour
2 USB Fast Charge 2A
2 Input Ports ( Micro USB / Type C )
4 LED To Show Remaining Charge Power