Silvercrest SPB 5.2 A1 - Manual (Page 72)

SilverCrest SPB 5.2 A1
70 - English
Check the device to be charged and the USB charging cable for any defects,
and replace them if necessary.
 Reconnect the USB charging cable and continue the charging process.
A connected device won’t charge
 The battery of the Power Bank (A) is empty; charge the battery.
 There is no connection to the device; check the connection.
 Briefly press the Charge level/START button (3) to start the charging process.
 The LEDs of the Power Bank (A) are not lit; connect the Power Bank (A) to a
computer or an external power supply for approximately two seconds in
order to reset the internal overload protection.
The Power Bank (A) does not switch on, or it switches on then
immediately off.
 The required charging current of the connected device is too low.