Makita LXT 18V battery to Parkside x20 tool adapter

Makita LXT 18V battery to Parkside x20 tool adapter. If you include a locking part and then screw together top and bottom parts the adapter is fixed to the tool. Makita battery is always detachable.
Bottom part uses original Makita terminal part no. 643874-2 (4€). Wires have to be soldered to the tool. I used 470kOhm potentiometer to set around 12V to temp. pin of tool. Without the potentiometer most of Parkside tools won't work.