SoFlow SO BIKE Originalbetriebsanleitung Seite 29

2. Charging:
Connect the charger plug to the battery, then plug the charger into your wall socket, finally
remove the battery isolator and turn on the switch.
The charging will approximately take 4 hours if the battery is completely empty. If the battery
is partially charged, the charging time might be shorter. The charging process is complete
when the light on top of the power supply unit jumps from red to green.