Silvercrest SPB 5.2 A1 - Manual (Page 15)

SilverCrest SPB 5.2 A1
English - 13
Alternatively, you can also use an external USB mains adapter
(not included in the package) to charge the battery of the Power
Bank.
Checking the charge level
You can also check the charge level of the Power Bank (A) when it is not being
charged or discharged. To do this, briefly press the Charge level/START button
(3). The LED display (2) gives you information about the charge level of the
Power Bank (A) for approximately three seconds:
LED display Charge level
All LEDs on Approximately 100%
Three LEDs on Approximately 75%
Two LEDs on Approximately 50%
One LED on Approximately 25%
All LEDs off Approximately 0%
Please note that the LED display gives only an approximate value of the actual
charge level of the Power Bank.
Charging external devices
To charge an external device with the Power Bank (A), connect the Power Bank
(A) with the external device using the supplied USB charging cable (B). To do
this, plug the Micro-USB connector (5) of the USB charging cable (B) into the
Micro-USB socket (4) of the external device, and plug the USB connector (6)