Can the hoover also be charged without attaching the charging station to the wall? So horizontally or vertically

Where can I buy a new filter for this item?

Do the charging station and battery have to be purchased separately or are they included?

How do i clean the dirt that fidnt pass through the filter? Its stuck at the front.

What is the minimum width of a crevice required for it to be vacuumed with the crevice nozzle?

Hello to all. While vacuuming up pine needles after Christmas, I had forgotten about the internal filter, for whatever reason. This resulted in needles getting into the vents. It was my own stupidity and not a guarantee. I then carefully opened it up and freed the suction cup from the needles. When it was open, it still worked. Closed again, no more sound, but the light that flashes alternately green and red when the switch is in the "on" position.... So there is still contact, otherwise the vacuum cleaner would be completely dead. What have I done wrong? Does anyone know about this flashing and how should I treat it? Thanks for any tips. Otherwise, I'm afraid I'll have to get a new vacuum cleaner, because I'm actually very happy with the little power unit...

Is it absolutely necessary to use the cradle for charging?