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With Powerbank you can charge two devices contemporaneously, for ex.
a tablet at the USB A entry and a smartphone by the integrated cable
with the micro-USB plug.
Of course, you can also use your own USB charging cable to connect the
Powerbank with your device. Please note, however, that devices can be
charged only through the USB A port of the Powerbank.
If a device is charged with the Powerbank and the Powerbank has almost
reached its capacity limits, this is signalled by flashing of the last status
LED. Please charge the Powerbank again.
Please note that, when charging a device with a Powerbank nearly 30% of
total capacity is consumed by the charging process alone. This is caused
for example by the loss of power from circuit heat and voltage
conversion.
For optimal performance, the Powerbank must be used regularly. If this is
not the case, fully charge the Powerbank at least every three months.
