20V tool battery adapter Vonroc to Parkside

20V tool battery adapter Vonroc to Parkside

This adapter can be used to use 20V Vonroc batteries on 20V Parkside tools

The parts can be glued together. Since I print in ABS I simply actetone welded the parts for a strong bond.

Preferably assemble in this order:

- start by connecting the female connectors to wires
- pressfit them into the tools base with wires sticking out through the hole
- Connect a 10K resistor between the negative and the terminal next to it (to fool the electronics there is a NTC connected)
- glue the clip onto the middle plate, and wait for it to dry
- glue the middle plate to the tool base, guiding the wires through the channels, and wait for it to dry
- stick wires through the hole in the battery base, cut them to length, connect the male connectors (I cut off the strain relief part) and clip the connectors in place. (make sure the barb pin sticks out enough to make it lock into place)
- glue the battery base to the middle plate and wait for it to dry
- make sure no wires stick out and glue the top cover on
- glue the optional button facia onto the clip

My prints were done:

- in ABS
- 0.6 mm nozzle
- 0.28 mm layer height
- 4 walls, 4 bottom layers, 4 top layers

Photos show two 20V Vonroc batteries on a 40V Parkside Weed wacker.

The connector parts can be found easily on Aliexpress.
Search for "6.3mm male spade connector" and "BX2091C Fuse Box Terminal"
Try to make the wires as thick as possible. I used 2.5mm2 with an OD off 3.5mm. Larger will not fit into the channels.