The diodes are flashing constantly, but that is of course at all is not a problem when it comes to power consumption. The display, however, be treated with caution. Since my car has quite a few control units which still draw energy in stand-by, flashed so far only the yellow or red LED. Even after charging flashed a yellow LED.
Nevertheless, the handling with my charger is now totally simple and practical, so 5 stars from me.
