Buy critera for use with PC notebooks is the maximum power output ( i.e. 65W via USB-C is ok, 22.5W via USB-C is insufficient ) & power capacity ( i.e. 60.000 mAH ).
There is a difference in power output via USB-C ( up to 65W ) and via USB-A ( e.g. 22.5 W ).
Power bank “N-m 475”, 10.000 mAh = 37Wh( “Intel” ). There are 4 blue LEDs.
Charging of the power bank akku, by 230V grid, via power adapter:
From right to left: The completeness of charging ist visualized by 4 blue lighting LEDs. The more blue LEDs are steady lighting, the more the charging is complete. Always the left blue LED might blink.
Complete charging, i.e. until the right blue LED is stable lighting, may take up to 24h.
Doesn't work with USB-C devices .
Power bank “5303”, 5200 mAH = 19.24 Wh ( “msg DAVID” ).
Works fine with USB-C devices .
Power bank “TOP-charger 3 in 1”, 5.000 mAh ( “baramundi” ) - USB input, Micro-USB input, Micro USB output - Defect as delivered, from start: Loads power, but does not provide power .