Parkside X20 battery to Einhell device adapter (Parkside Akku Adapter für Einhell Geräte)

Parkside batteries are often available at low prices.
With this adapter, you can connect a Parkside battery to Einhell devices.
The focus of the design was on printing without critical overhangs so that printing is possible even without supports.
In addition, the connection terminals are mounted more robustly compared to similar designs, enabling them to withstand many connection and disconnection cycles.
If you use different female terminal connectors, I recommend fixing them with epoxy glue.

Limitations:
Charging the Parkside battery with the Einhell charger is not supported, due to the different protocols of Parkside and Einhell. The same applies to the over-temperature and undervoltage detection.

Aufgrund der unterschiedlichen Protokolle von Parkside und Einhell, kann der Parkside Akku nicht mit dem Adapter von einem Einhell Ladegerät geladen werden. Aus dem gleichen Grund wird auch die Übertemperatur- und Unterspannungserkennung nicht unterstützt. 

Stückliste (BOM)
2x Feder (tower spring)               0.4mmx4-8x10mm https://de.aliexpress.com/item/1005007491151885.html
2x Kontaktfeder (female terminal)     6.3mm https://de.aliexpress.com/item/4000661150735.html
8x Schraube (torx self tapping screw) M2.6x12 https://de.aliexpress.com/item/1005006918769111.html
2x Kontaktmesser (solder terminal)    6.3mm https://de.aliexpress.com/item/4000848857266.html
1x PCB 27.5x8.8
2x cable 1.5mm²

Hints:
Make a thread for the screws before mounting the parts by using a soldering iron to moderately heat up the screws and screwing them in. Eventually cut excess rims on the parts after unscrewing.
Bend the solder terminal pins before soldering so that there will be no pulling force on the solder connection when detaching the adapter
Eventually, use a soldering iron to melt the lower wings of the terminals into the bottom of the Parkside part.

printed with PETG 0.12mm high quality, 4 wall loops, support enabled but not essential