Last idea went very well from €0,06 to €0,32. After that it went down again to €0,12. The business (DBT) clarified that they stopped the equity line, so this should be a new bottom with strong potential upside. (link)
High risk, high potential, especially in case the the EV-market continues to grow and there will be a much bigger need of high quality high KW/voltage electric vehicle chargers (50kw/150kw/350kw+).