4. Can the power bank output during charging?
Yes, it can. The power bank can output during
charging, it can supply the other devices.
3. How to know the device is charging?
Firstly, make sure the power bank using correct
power. If needs, please search on google or
check the manual.
Secondly, check the inverter. For example, the
inverter is in output for 100W, it means the power
bank can't power for other devices which above
the 100W.
Finally, make sure the device is compatible. Use
the function to calculate the battery capacity.
Such as, a set device's capacity is 200Wh can
charge the unit with power of 100W for 2 hours
(200/100=2)