Manual charging of the battery:
Follow the instructions carefully:
Ensure that the lid is closed (applies to L and M models).
Remove the machine from the charging station.
Turn off the main switch and wait 5 seconds.
Turn the main switch back on and push the machine back into the charging station.
Important: Do not turn on the machine's power button on the keyboard and keep the lid closed.
See possibly a video on manual charging:
S models https://youtu.be/j2Tj2QDqgHI
L and M models https://youtu.be/h5ML2rRWVK0
The light will not turn green immediately – it may take up to 1 hour
Note!
The robotic lawn mower reports a battery error if the main switch is in the off position and receives power from the charging station to turn on the display